20905594

素因数分解:

$2^1\times {\mathrm{31}}^2\times {\mathrm{73}}^1\times {\mathrm{149}}^1$

素因数の和:286

約数の個数: 24

約数和(自身を含む): 33066900

約数和(自身を除く): 12161306

約数列:

[1, 2, 31, 62, 73, 146, 149, 298, 961, 1922, 2263, 4526, 4619, 9238, 10877, 21754, 70153, 140306, 143189, 286378, 337187, 674374, 10452797, 20905594]

約数ペア:

[(1, 20905594), (2, 10452797), (31, 674374), (62, 337187), (73, 286378), (146, 143189), (149, 140306), (298, 70153), (961, 21754), (1922, 10877), (2263, 9238), (4526, 4619)]