21523190

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{9739}}^1$

素因数の和:9776

約数の個数: 32

約数和(自身を含む): 44180640

約数和(自身を除く): 22657450

約数列:

[1, 2, 5, 10, 13, 17, 26, 34, 65, 85, 130, 170, 221, 442, 1105, 2210, 9739, 19478, 48695, 97390, 126607, 165563, 253214, 331126, 633035, 827815, 1266070, 1655630, 2152319, 4304638, 10761595, 21523190]

約数ペア:

[(1, 21523190), (2, 10761595), (5, 4304638), (10, 2152319), (13, 1655630), (17, 1266070), (26, 827815), (34, 633035), (65, 331126), (85, 253214), (130, 165563), (170, 126607), (221, 97390), (442, 48695), (1105, 19478), (2210, 9739)]