20538652

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{163}}^1$

素因数の和:310

約数の個数: 36

約数和(自身を含む): 38767960

約数和(自身を除く): 18229308

約数列:

[1, 2, 4, 17, 34, 68, 109, 163, 218, 289, 326, 436, 578, 652, 1156, 1853, 2771, 3706, 5542, 7412, 11084, 17767, 31501, 35534, 47107, 63002, 71068, 94214, 126004, 188428, 302039, 604078, 1208156, 5134663, 10269326, 20538652]

約数ペア:

[(1, 20538652), (2, 10269326), (4, 5134663), (17, 1208156), (34, 604078), (68, 302039), (109, 188428), (163, 126004), (218, 94214), (289, 71068), (326, 63002), (436, 47107), (578, 35534), (652, 31501), (1156, 17767), (1853, 11084), (2771, 7412), (3706, 5542)]