21214440

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{1511}}^1$

素因数の和:1544

約数の個数: 128

約数和(自身を含む): 76204800

約数和(自身を除く): 54990360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 13, 15, 18, 20, 24, 26, 27, 30, 36, 39, 40, 45, 52, 54, 60, 65, 72, 78, 90, 104, 108, 117, 120, 130, 135, 156, 180, 195, 216, 234, 260, 270, 312, 351, 360, 390, 468, 520, 540, 585, 702, 780, 936, 1080, 1170, 1404, 1511, 1560, 1755, 2340, 2808, 3022, 3510, 4533, 4680, 6044, 7020, 7555, 9066, 12088, 13599, 14040, 15110, 18132, 19643, 22665, 27198, 30220, 36264, 39286, 40797, 45330, 54396, 58929, 60440, 67995, 78572, 81594, 90660, 98215, 108792, 117858, 135990, 157144, 163188, 176787, 181320, 196430, 203985, 235716, 271980, 294645, 326376, 353574, 392860, 407970, 471432, 530361, 543960, 589290, 707148, 785720, 815940, 883935, 1060722, 1178580, 1414296, 1631880, 1767870, 2121444, 2357160, 2651805, 3535740, 4242888, 5303610, 7071480, 10607220, 21214440]

約数ペア:

[(1, 21214440), (2, 10607220), (3, 7071480), (4, 5303610), (5, 4242888), (6, 3535740), (8, 2651805), (9, 2357160), (10, 2121444), (12, 1767870), (13, 1631880), (15, 1414296), (18, 1178580), (20, 1060722), (24, 883935), (26, 815940), (27, 785720), (30, 707148), (36, 589290), (39, 543960), (40, 530361), (45, 471432), (52, 407970), (54, 392860), (60, 353574), (65, 326376), (72, 294645), (78, 271980), (90, 235716), (104, 203985), (108, 196430), (117, 181320), (120, 176787), (130, 163188), (135, 157144), (156, 135990), (180, 117858), (195, 108792), (216, 98215), (234, 90660), (260, 81594), (270, 78572), (312, 67995), (351, 60440), (360, 58929), (390, 54396), (468, 45330), (520, 40797), (540, 39286), (585, 36264), (702, 30220), (780, 27198), (936, 22665), (1080, 19643), (1170, 18132), (1404, 15110), (1511, 14040), (1560, 13599), (1755, 12088), (2340, 9066), (2808, 7555), (3022, 7020), (3510, 6044), (4533, 4680)]