20345618

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{7541}}^1$

素因数の和:7633

約数の個数: 16

約数和(自身を含む): 32581440

約数和(自身を除く): 12235822

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 7541, 15082, 143279, 286558, 535411, 1070822, 10172809, 20345618]

約数ペア:

[(1, 20345618), (2, 10172809), (19, 1070822), (38, 535411), (71, 286558), (142, 143279), (1349, 15082), (2698, 7541)]