21497743875

素因数分解:

$3^1\times 5^3\times {\mathrm{71}}^1\times {\mathrm{807427}}^1$

素因数の和:807516

約数の個数: 32

約数和(自身を含む): 36276125184

約数和(自身を除く): 14778381309

約数列:

[1, 3, 5, 15, 25, 71, 75, 125, 213, 355, 375, 1065, 1775, 5325, 8875, 26625, 807427, 2422281, 4037135, 12111405, 20185675, 57327317, 60557025, 100928375, 171981951, 286636585, 302785125, 859909755, 1433182925, 4299548775, 7165914625, 21497743875]

約数ペア:

[(1, 21497743875), (3, 7165914625), (5, 4299548775), (15, 1433182925), (25, 859909755), (71, 302785125), (75, 286636585), (125, 171981951), (213, 100928375), (355, 60557025), (375, 57327317), (1065, 20185675), (1775, 12111405), (5325, 4037135), (8875, 2422281), (26625, 807427)]