81875521

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{1627}}^1$

素因数の和:1733

約数の個数: 24

約数和(自身を含む): 103931520

約数和(自身を除く): 22055999

約数列:

[1, 7, 13, 49, 79, 91, 553, 637, 1027, 1627, 3871, 7189, 11389, 21151, 50323, 79723, 128533, 148057, 899731, 1036399, 1670929, 6298117, 11696503, 81875521]

約数ペア:

[(1, 81875521), (7, 11696503), (13, 6298117), (49, 1670929), (79, 1036399), (91, 899731), (553, 148057), (637, 128533), (1027, 79723), (1627, 50323), (3871, 21151), (7189, 11389)]