21750375

素因数分解:

$3^1\times 5^3\times {\mathrm{31}}^1\times {\mathrm{1871}}^1$

素因数の和:1920

約数の個数: 32

約数和(自身を含む): 37380096

約数和(自身を除く): 15629721

約数列:

[1, 3, 5, 15, 25, 31, 75, 93, 125, 155, 375, 465, 775, 1871, 2325, 3875, 5613, 9355, 11625, 28065, 46775, 58001, 140325, 174003, 233875, 290005, 701625, 870015, 1450025, 4350075, 7250125, 21750375]

約数ペア:

[(1, 21750375), (3, 7250125), (5, 4350075), (15, 1450025), (25, 870015), (31, 701625), (75, 290005), (93, 233875), (125, 174003), (155, 140325), (375, 58001), (465, 46775), (775, 28065), (1871, 11625), (2325, 9355), (3875, 5613)]