20438886

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{3911}}^1$

素因数の和:3996

約数の個数: 32

約数和(自身を含む): 44690688

約数和(自身を除く): 24251802

約数列:

[1, 2, 3, 6, 13, 26, 39, 67, 78, 134, 201, 402, 871, 1742, 2613, 3911, 5226, 7822, 11733, 23466, 50843, 101686, 152529, 262037, 305058, 524074, 786111, 1572222, 3406481, 6812962, 10219443, 20438886]

約数ペア:

[(1, 20438886), (2, 10219443), (3, 6812962), (6, 3406481), (13, 1572222), (26, 786111), (39, 524074), (67, 305058), (78, 262037), (134, 152529), (201, 101686), (402, 50843), (871, 23466), (1742, 11733), (2613, 7822), (3911, 5226)]