21768175

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{6089}}^1$

素因数の和:6123

約数の個数: 24

約数和(自身を含む): 31716720

約数和(自身を除く): 9948545

約数列:

[1, 5, 11, 13, 25, 55, 65, 143, 275, 325, 715, 3575, 6089, 30445, 66979, 79157, 152225, 334895, 395785, 870727, 1674475, 1978925, 4353635, 21768175]

約数ペア:

[(1, 21768175), (5, 4353635), (11, 1978925), (13, 1674475), (25, 870727), (55, 395785), (65, 334895), (143, 152225), (275, 79157), (325, 66979), (715, 30445), (3575, 6089)]