21123141840

素因数分解:

$2^4\times 3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{413207}}^1$

素因数の和:413297

約数の個数: 120

約数和(自身を含む): 71937859968

約数和(自身を除く): 50814718128

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 30, 36, 40, 45, 48, 60, 71, 72, 80, 90, 120, 142, 144, 180, 213, 240, 284, 355, 360, 426, 568, 639, 710, 720, 852, 1065, 1136, 1278, 1420, 1704, 2130, 2556, 2840, 3195, 3408, 4260, 5112, 5680, 6390, 8520, 10224, 12780, 17040, 25560, 51120, 413207, 826414, 1239621, 1652828, 2066035, 2479242, 3305656, 3718863, 4132070, 4958484, 6198105, 6611312, 7437726, 8264140, 9916968, 12396210, 14875452, 16528280, 18594315, 19833936, 24792420, 29337697, 29750904, 33056560, 37188630, 49584840, 58675394, 59501808, 74377260, 88013091, 99169680, 117350788, 146688485, 148754520, 176026182, 234701576, 264039273, 293376970, 297509040, 352052364, 440065455, 469403152, 528078546, 586753940, 704104728, 880130910, 1056157092, 1173507880, 1320196365, 1408209456, 1760261820, 2112314184, 2347015760, 2640392730, 3520523640, 4224628368, 5280785460, 7041047280, 10561570920, 21123141840]

約数ペア:

[(1, 21123141840), (2, 10561570920), (3, 7041047280), (4, 5280785460), (5, 4224628368), (6, 3520523640), (8, 2640392730), (9, 2347015760), (10, 2112314184), (12, 1760261820), (15, 1408209456), (16, 1320196365), (18, 1173507880), (20, 1056157092), (24, 880130910), (30, 704104728), (36, 586753940), (40, 528078546), (45, 469403152), (48, 440065455), (60, 352052364), (71, 297509040), (72, 293376970), (80, 264039273), (90, 234701576), (120, 176026182), (142, 148754520), (144, 146688485), (180, 117350788), (213, 99169680), (240, 88013091), (284, 74377260), (355, 59501808), (360, 58675394), (426, 49584840), (568, 37188630), (639, 33056560), (710, 29750904), (720, 29337697), (852, 24792420), (1065, 19833936), (1136, 18594315), (1278, 16528280), (1420, 14875452), (1704, 12396210), (2130, 9916968), (2556, 8264140), (2840, 7437726), (3195, 6611312), (3408, 6198105), (4260, 4958484), (5112, 4132070), (5680, 3718863), (6390, 3305656), (8520, 2479242), (10224, 2066035), (12780, 1652828), (17040, 1239621), (25560, 826414), (51120, 413207)]