20917130

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{12377}}^1$

素因数の和:12410

約数の個数: 24

約数和(自身を含む): 40773132

約数和(自身を除く): 19856002

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 12377, 24754, 61885, 123770, 160901, 321802, 804505, 1609010, 2091713, 4183426, 10458565, 20917130]

約数ペア:

[(1, 20917130), (2, 10458565), (5, 4183426), (10, 2091713), (13, 1609010), (26, 804505), (65, 321802), (130, 160901), (169, 123770), (338, 61885), (845, 24754), (1690, 12377)]