20789079

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{479}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 31518720

約数和(自身を除く): 10729641

約数列:

[1, 3, 17, 23, 37, 51, 69, 111, 391, 479, 629, 851, 1173, 1437, 1887, 2553, 8143, 11017, 14467, 17723, 24429, 33051, 43401, 53169, 187289, 301291, 407629, 561867, 903873, 1222887, 6929693, 20789079]

約数ペア:

[(1, 20789079), (3, 6929693), (17, 1222887), (23, 903873), (37, 561867), (51, 407629), (69, 301291), (111, 187289), (391, 53169), (479, 43401), (629, 33051), (851, 24429), (1173, 17723), (1437, 14467), (1887, 11017), (2553, 8143)]