20965212

素因数分解:

$2^2\times 3^2\times {\mathrm{61}}^1\times {\mathrm{9547}}^1$

素因数の和:9618

約数の個数: 36

約数和(自身を含む): 53869816

約数和(自身を除く): 32904604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 61, 122, 183, 244, 366, 549, 732, 1098, 2196, 9547, 19094, 28641, 38188, 57282, 85923, 114564, 171846, 343692, 582367, 1164734, 1747101, 2329468, 3494202, 5241303, 6988404, 10482606, 20965212]

約数ペア:

[(1, 20965212), (2, 10482606), (3, 6988404), (4, 5241303), (6, 3494202), (9, 2329468), (12, 1747101), (18, 1164734), (36, 582367), (61, 343692), (122, 171846), (183, 114564), (244, 85923), (366, 57282), (549, 38188), (732, 28641), (1098, 19094), (2196, 9547)]