20565643977

素因数分解:

$3^2\times {\mathrm{211}}^1\times {\mathrm{257}}^1\times {\mathrm{42139}}^1$

素因数の和:42613

約数の個数: 24

約数和(自身を含む): 29963562720

約数和(自身を除く): 9397918743

約数列:

[1, 3, 9, 211, 257, 633, 771, 1899, 2313, 42139, 54227, 126417, 162681, 379251, 488043, 8891329, 10829723, 26673987, 32489169, 80021961, 97467507, 2285071553, 6855214659, 20565643977]

約数ペア:

[(1, 20565643977), (3, 6855214659), (9, 2285071553), (211, 97467507), (257, 80021961), (633, 32489169), (771, 26673987), (1899, 10829723), (2313, 8891329), (42139, 488043), (54227, 379251), (126417, 162681)]