20921822

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{3631}}^1$

素因数の和:3743

約数の個数: 16

約数和(自身を含む): 32600832

約数和(自身を除く): 11679010

約数列:

[1, 2, 43, 67, 86, 134, 2881, 3631, 5762, 7262, 156133, 243277, 312266, 486554, 10460911, 20921822]

約数ペア:

[(1, 20921822), (2, 10460911), (43, 486554), (67, 312266), (86, 243277), (134, 156133), (2881, 7262), (3631, 5762)]