20878792

素因数分解:

$2^3\times {\mathrm{11}}^2\times {\mathrm{21569}}^1$

素因数の和:21597

約数の個数: 24

約数和(自身を含む): 43032150

約数和(自身を除く): 22153358

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 121, 242, 484, 968, 21569, 43138, 86276, 172552, 237259, 474518, 949036, 1898072, 2609849, 5219698, 10439396, 20878792]

約数ペア:

[(1, 20878792), (2, 10439396), (4, 5219698), (8, 2609849), (11, 1898072), (22, 949036), (44, 474518), (88, 237259), (121, 172552), (242, 86276), (484, 43138), (968, 21569)]