20197616957

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{137}}^1\times {\mathrm{19483}}^1$

素因数の和:19697

約数の個数: 32

約数和(自身を含む): 24779907072

約数和(自身を除く): 4582290115

約数列:

[1, 7, 23, 47, 137, 161, 329, 959, 1081, 3151, 6439, 7567, 19483, 22057, 45073, 136381, 148097, 448109, 915701, 1036679, 2669171, 3136763, 6409907, 18684197, 21061123, 61390933, 125451037, 147427861, 429736531, 878157259, 2885373851, 20197616957]

約数ペア:

[(1, 20197616957), (7, 2885373851), (23, 878157259), (47, 429736531), (137, 147427861), (161, 125451037), (329, 61390933), (959, 21061123), (1081, 18684197), (3151, 6409907), (6439, 3136763), (7567, 2669171), (19483, 1036679), (22057, 915701), (45073, 448109), (136381, 148097)]