31907421

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{38959}}^1$

素因数の和:38985

約数の個数: 24

約数和(自身を含む): 56725760

約数和(自身を除く): 24818339

約数列:

[1, 3, 7, 9, 13, 21, 39, 63, 91, 117, 273, 819, 38959, 116877, 272713, 350631, 506467, 818139, 1519401, 2454417, 3545269, 4558203, 10635807, 31907421]

約数ペア:

[(1, 31907421), (3, 10635807), (7, 4558203), (9, 3545269), (13, 2454417), (21, 1519401), (39, 818139), (63, 506467), (91, 350631), (117, 272713), (273, 116877), (819, 38959)]