20686268164

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{131}}^1\times {\mathrm{2077769}}^1$

素因数の和:2077923

約数の個数: 24

約数和(自身を含む): 38397189600

約数和(自身を除く): 17710921436

約数列:

[1, 2, 4, 19, 38, 76, 131, 262, 524, 2489, 4978, 9956, 2077769, 4155538, 8311076, 39477611, 78955222, 157910444, 272187739, 544375478, 1088750956, 5171567041, 10343134082, 20686268164]

約数ペア:

[(1, 20686268164), (2, 10343134082), (4, 5171567041), (19, 1088750956), (38, 544375478), (76, 272187739), (131, 157910444), (262, 78955222), (524, 39477611), (2489, 8311076), (4978, 4155538), (9956, 2077769)]