20131568709

素因数分解:

$3^1\times 7^2\times {\mathrm{137}}^1\times {\mathrm{999631}}^1$

素因数の和:999785

約数の個数: 24

約数和(自身を含む): 31452421248

約数和(自身を除く): 11320852539

約数列:

[1, 3, 7, 21, 49, 137, 147, 411, 959, 2877, 6713, 20139, 999631, 2998893, 6997417, 20992251, 48981919, 136949447, 146945757, 410848341, 958646129, 2875938387, 6710522903, 20131568709]

約数ペア:

[(1, 20131568709), (3, 6710522903), (7, 2875938387), (21, 958646129), (49, 410848341), (137, 146945757), (147, 136949447), (411, 48981919), (959, 20992251), (2877, 6997417), (6713, 2998893), (20139, 999631)]