19685836

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1\times {\mathrm{277}}^1$

素因数の和:553

約数の個数: 24

約数和(自身を含む): 35105840

約数和(自身を除く): 15420004

約数列:

[1, 2, 4, 109, 163, 218, 277, 326, 436, 554, 652, 1108, 17767, 30193, 35534, 45151, 60386, 71068, 90302, 120772, 180604, 4921459, 9842918, 19685836]

約数ペア:

[(1, 19685836), (2, 9842918), (4, 4921459), (109, 180604), (163, 120772), (218, 90302), (277, 71068), (326, 60386), (436, 45151), (554, 35534), (652, 30193), (1108, 17767)]