21453120

素因数分解:

$2^6\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{191}}^1$

素因数の和:230

約数の個数: 224

約数和(自身を含む): 81930240

約数和(自身を除く): 60477120

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 16, 18, 20, 24, 26, 27, 30, 32, 36, 39, 40, 45, 48, 52, 54, 60, 64, 65, 72, 78, 80, 90, 96, 104, 108, 117, 120, 130, 135, 144, 156, 160, 180, 191, 192, 195, 208, 216, 234, 240, 260, 270, 288, 312, 320, 351, 360, 382, 390, 416, 432, 468, 480, 520, 540, 573, 576, 585, 624, 702, 720, 764, 780, 832, 864, 936, 955, 960, 1040, 1080, 1146, 1170, 1248, 1404, 1440, 1528, 1560, 1719, 1728, 1755, 1872, 1910, 2080, 2160, 2292, 2340, 2483, 2496, 2808, 2865, 2880, 3056, 3120, 3438, 3510, 3744, 3820, 4160, 4320, 4584, 4680, 4966, 5157, 5616, 5730, 6112, 6240, 6876, 7020, 7449, 7488, 7640, 8595, 8640, 9168, 9360, 9932, 10314, 11232, 11460, 12224, 12415, 12480, 13752, 14040, 14898, 15280, 17190, 18336, 18720, 19864, 20628, 22347, 22464, 22920, 24830, 25785, 27504, 28080, 29796, 30560, 34380, 36672, 37245, 37440, 39728, 41256, 44694, 45840, 49660, 51570, 55008, 56160, 59592, 61120, 67041, 68760, 74490, 79456, 82512, 89388, 91680, 99320, 103140, 110016, 111735, 112320, 119184, 134082, 137520, 148980, 158912, 165024, 178776, 183360, 198640, 206280, 223470, 238368, 268164, 275040, 297960, 330048, 335205, 357552, 397280, 412560, 446940, 476736, 536328, 550080, 595920, 670410, 715104, 794560, 825120, 893880, 1072656, 1191840, 1340820, 1430208, 1650240, 1787760, 2145312, 2383680, 2681640, 3575520, 4290624, 5363280, 7151040, 10726560, 21453120]

約数ペア:

[(1, 21453120), (2, 10726560), (3, 7151040), (4, 5363280), (5, 4290624), (6, 3575520), (8, 2681640), (9, 2383680), (10, 2145312), (12, 1787760), (13, 1650240), (15, 1430208), (16, 1340820), (18, 1191840), (20, 1072656), (24, 893880), (26, 825120), (27, 794560), (30, 715104), (32, 670410), (36, 595920), (39, 550080), (40, 536328), (45, 476736), (48, 446940), (52, 412560), (54, 397280), (60, 357552), (64, 335205), (65, 330048), (72, 297960), (78, 275040), (80, 268164), (90, 238368), (96, 223470), (104, 206280), (108, 198640), (117, 183360), (120, 178776), (130, 165024), (135, 158912), (144, 148980), (156, 137520), (160, 134082), (180, 119184), (191, 112320), (192, 111735), (195, 110016), (208, 103140), (216, 99320), (234, 91680), (240, 89388), (260, 82512), (270, 79456), (288, 74490), (312, 68760), (320, 67041), (351, 61120), (360, 59592), (382, 56160), (390, 55008), (416, 51570), (432, 49660), (468, 45840), (480, 44694), (520, 41256), (540, 39728), (573, 37440), (576, 37245), (585, 36672), (624, 34380), (702, 30560), (720, 29796), (764, 28080), (780, 27504), (832, 25785), (864, 24830), (936, 22920), (955, 22464), (960, 22347), (1040, 20628), (1080, 19864), (1146, 18720), (1170, 18336), (1248, 17190), (1404, 15280), (1440, 14898), (1528, 14040), (1560, 13752), (1719, 12480), (1728, 12415), (1755, 12224), (1872, 11460), (1910, 11232), (2080, 10314), (2160, 9932), (2292, 9360), (2340, 9168), (2483, 8640), (2496, 8595), (2808, 7640), (2865, 7488), (2880, 7449), (3056, 7020), (3120, 6876), (3438, 6240), (3510, 6112), (3744, 5730), (3820, 5616), (4160, 5157), (4320, 4966), (4584, 4680)]