1821980199

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{149257}}^1$

素因数の和:149586

約数の個数: 16

約数和(自身を含む): 2624552672

約数和(自身を除く): 802572473

約数列:

[1, 3, 13, 39, 313, 939, 4069, 12207, 149257, 447771, 1940341, 5821023, 46717441, 140152323, 607326733, 1821980199]

約数ペア:

[(1, 1821980199), (3, 607326733), (13, 140152323), (39, 46717441), (313, 5821023), (939, 1940341), (4069, 447771), (12207, 149257)]