21366750

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{919}}^1$

素因数の和:970

約数の個数: 64

約数和(自身を含む): 55111680

約数和(自身を除く): 33744930

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 31, 50, 62, 75, 93, 125, 150, 155, 186, 250, 310, 375, 465, 750, 775, 919, 930, 1550, 1838, 2325, 2757, 3875, 4595, 4650, 5514, 7750, 9190, 11625, 13785, 22975, 23250, 27570, 28489, 45950, 56978, 68925, 85467, 114875, 137850, 142445, 170934, 229750, 284890, 344625, 427335, 689250, 712225, 854670, 1424450, 2136675, 3561125, 4273350, 7122250, 10683375, 21366750]

約数ペア:

[(1, 21366750), (2, 10683375), (3, 7122250), (5, 4273350), (6, 3561125), (10, 2136675), (15, 1424450), (25, 854670), (30, 712225), (31, 689250), (50, 427335), (62, 344625), (75, 284890), (93, 229750), (125, 170934), (150, 142445), (155, 137850), (186, 114875), (250, 85467), (310, 68925), (375, 56978), (465, 45950), (750, 28489), (775, 27570), (919, 23250), (930, 22975), (1550, 13785), (1838, 11625), (2325, 9190), (2757, 7750), (3875, 5514), (4595, 4650)]