21579720

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{5801}}^1$

素因数の和:5846

約数の個数: 64

約数和(自身を含む): 66839040

約数和(自身を除く): 45259320

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 31, 40, 60, 62, 93, 120, 124, 155, 186, 248, 310, 372, 465, 620, 744, 930, 1240, 1860, 3720, 5801, 11602, 17403, 23204, 29005, 34806, 46408, 58010, 69612, 87015, 116020, 139224, 174030, 179831, 232040, 348060, 359662, 539493, 696120, 719324, 899155, 1078986, 1438648, 1798310, 2157972, 2697465, 3596620, 4315944, 5394930, 7193240, 10789860, 21579720]

約数ペア:

[(1, 21579720), (2, 10789860), (3, 7193240), (4, 5394930), (5, 4315944), (6, 3596620), (8, 2697465), (10, 2157972), (12, 1798310), (15, 1438648), (20, 1078986), (24, 899155), (30, 719324), (31, 696120), (40, 539493), (60, 359662), (62, 348060), (93, 232040), (120, 179831), (124, 174030), (155, 139224), (186, 116020), (248, 87015), (310, 69612), (372, 58010), (465, 46408), (620, 34806), (744, 29005), (930, 23204), (1240, 17403), (1860, 11602), (3720, 5801)]