18121870

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^2\times {\mathrm{10723}}^1$

素因数の和:10756

約数の個数: 24

約数和(自身を含む): 35324856

約数和(自身を除く): 17202986

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 169, 338, 845, 1690, 10723, 21446, 53615, 107230, 139399, 278798, 696995, 1393990, 1812187, 3624374, 9060935, 18121870]

約数ペア:

[(1, 18121870), (2, 9060935), (5, 3624374), (10, 1812187), (13, 1393990), (26, 696995), (65, 278798), (130, 139399), (169, 107230), (338, 53615), (845, 21446), (1690, 10723)]