21140250

素因数分解:

$2^1\times 3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{397}}^1$

素因数の和:488

約数の個数: 64

約数和(自身を含む): 53644032

約数和(自身を除く): 32503782

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 71, 75, 125, 142, 150, 213, 250, 355, 375, 397, 426, 710, 750, 794, 1065, 1191, 1775, 1985, 2130, 2382, 3550, 3970, 5325, 5955, 8875, 9925, 10650, 11910, 17750, 19850, 26625, 28187, 29775, 49625, 53250, 56374, 59550, 84561, 99250, 140935, 148875, 169122, 281870, 297750, 422805, 704675, 845610, 1409350, 2114025, 3523375, 4228050, 7046750, 10570125, 21140250]

約数ペア:

[(1, 21140250), (2, 10570125), (3, 7046750), (5, 4228050), (6, 3523375), (10, 2114025), (15, 1409350), (25, 845610), (30, 704675), (50, 422805), (71, 297750), (75, 281870), (125, 169122), (142, 148875), (150, 140935), (213, 99250), (250, 84561), (355, 59550), (375, 56374), (397, 53250), (426, 49625), (710, 29775), (750, 28187), (794, 26625), (1065, 19850), (1191, 17750), (1775, 11910), (1985, 10650), (2130, 9925), (2382, 8875), (3550, 5955), (3970, 5325)]