20887518

素因数分解:

$2^1\times 3^1\times {\mathrm{67}}^1\times {\mathrm{223}}^1\times {\mathrm{233}}^1$

素因数の和:528

約数の個数: 32

約数和(自身を含む): 42771456

約数和(自身を除く): 21883938

約数列:

[1, 2, 3, 6, 67, 134, 201, 223, 233, 402, 446, 466, 669, 699, 1338, 1398, 14941, 15611, 29882, 31222, 44823, 46833, 51959, 89646, 93666, 103918, 155877, 311754, 3481253, 6962506, 10443759, 20887518]

約数ペア:

[(1, 20887518), (2, 10443759), (3, 6962506), (6, 3481253), (67, 311754), (134, 155877), (201, 103918), (223, 93666), (233, 89646), (402, 51959), (446, 46833), (466, 44823), (669, 31222), (699, 29882), (1338, 15611), (1398, 14941)]