21613560

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{191}}^1$

素因数の和:269

約数の個数: 128

約数和(自身を含む): 69672960

約数和(自身を除く): 48059400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 23, 24, 30, 40, 41, 46, 60, 69, 82, 92, 115, 120, 123, 138, 164, 184, 191, 205, 230, 246, 276, 328, 345, 382, 410, 460, 492, 552, 573, 615, 690, 764, 820, 920, 943, 955, 984, 1146, 1230, 1380, 1528, 1640, 1886, 1910, 2292, 2460, 2760, 2829, 2865, 3772, 3820, 4393, 4584, 4715, 4920, 5658, 5730, 7544, 7640, 7831, 8786, 9430, 11316, 11460, 13179, 14145, 15662, 17572, 18860, 21965, 22632, 22920, 23493, 26358, 28290, 31324, 35144, 37720, 39155, 43930, 46986, 52716, 56580, 62648, 65895, 78310, 87860, 93972, 105432, 113160, 117465, 131790, 156620, 175720, 180113, 187944, 234930, 263580, 313240, 360226, 469860, 527160, 540339, 720452, 900565, 939720, 1080678, 1440904, 1801130, 2161356, 2701695, 3602260, 4322712, 5403390, 7204520, 10806780, 21613560]

約数ペア:

[(1, 21613560), (2, 10806780), (3, 7204520), (4, 5403390), (5, 4322712), (6, 3602260), (8, 2701695), (10, 2161356), (12, 1801130), (15, 1440904), (20, 1080678), (23, 939720), (24, 900565), (30, 720452), (40, 540339), (41, 527160), (46, 469860), (60, 360226), (69, 313240), (82, 263580), (92, 234930), (115, 187944), (120, 180113), (123, 175720), (138, 156620), (164, 131790), (184, 117465), (191, 113160), (205, 105432), (230, 93972), (246, 87860), (276, 78310), (328, 65895), (345, 62648), (382, 56580), (410, 52716), (460, 46986), (492, 43930), (552, 39155), (573, 37720), (615, 35144), (690, 31324), (764, 28290), (820, 26358), (920, 23493), (943, 22920), (955, 22632), (984, 21965), (1146, 18860), (1230, 17572), (1380, 15662), (1528, 14145), (1640, 13179), (1886, 11460), (1910, 11316), (2292, 9430), (2460, 8786), (2760, 7831), (2829, 7640), (2865, 7544), (3772, 5730), (3820, 5658), (4393, 4920), (4584, 4715)]