21582340

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83009}}^1$

素因数の和:83031

約数の個数: 24

約数和(自身を含む): 48809880

約数和(自身を除く): 27227540

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83009, 166018, 332036, 415045, 830090, 1079117, 1660180, 2158234, 4316468, 5395585, 10791170, 21582340]

約数ペア:

[(1, 21582340), (2, 10791170), (4, 5395585), (5, 4316468), (10, 2158234), (13, 1660180), (20, 1079117), (26, 830090), (52, 415045), (65, 332036), (130, 166018), (260, 83009)]