21893612

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{139}}^1\times {\mathrm{233}}^1$

素因数の和:402

約数の個数: 36

約数和(自身を含む): 41965560

約数和(自身を除く): 20071948

約数列:

[1, 2, 4, 13, 26, 52, 139, 169, 233, 278, 338, 466, 556, 676, 932, 1807, 3029, 3614, 6058, 7228, 12116, 23491, 32387, 39377, 46982, 64774, 78754, 93964, 129548, 157508, 421031, 842062, 1684124, 5473403, 10946806, 21893612]

約数ペア:

[(1, 21893612), (2, 10946806), (4, 5473403), (13, 1684124), (26, 842062), (52, 421031), (139, 157508), (169, 129548), (233, 93964), (278, 78754), (338, 64774), (466, 46982), (556, 39377), (676, 32387), (932, 23491), (1807, 12116), (3029, 7228), (3614, 6058)]