21820054

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{347}}^1\times {\mathrm{1367}}^1$

素因数の和:1739

約数の個数: 16

約数和(自身を含む): 34276608

約数和(自身を除く): 12456554

約数列:

[1, 2, 23, 46, 347, 694, 1367, 2734, 7981, 15962, 31441, 62882, 474349, 948698, 10910027, 21820054]

約数ペア:

[(1, 21820054), (2, 10910027), (23, 948698), (46, 474349), (347, 62882), (694, 31441), (1367, 15962), (2734, 7981)]