20409477

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{757}}^1$

素因数の和:833

約数の個数: 32

約数和(自身を含む): 32017920

約数和(自身を除く): 11608443

約数列:

[1, 3, 11, 19, 33, 43, 57, 129, 209, 473, 627, 757, 817, 1419, 2271, 2451, 8327, 8987, 14383, 24981, 26961, 32551, 43149, 97653, 158213, 358061, 474639, 618469, 1074183, 1855407, 6803159, 20409477]

約数ペア:

[(1, 20409477), (3, 6803159), (11, 1855407), (19, 1074183), (33, 618469), (43, 474639), (57, 358061), (129, 158213), (209, 97653), (473, 43149), (627, 32551), (757, 26961), (817, 24981), (1419, 14383), (2271, 8987), (2451, 8327)]