18518890

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{142453}}^1$

素因数の和:142473

約数の個数: 16

約数和(自身を含む): 35898408

約数和(自身を除く): 17379518

約数列:

[1, 2, 5, 10, 13, 26, 65, 130, 142453, 284906, 712265, 1424530, 1851889, 3703778, 9259445, 18518890]

約数ペア:

[(1, 18518890), (2, 9259445), (5, 3703778), (10, 1851889), (13, 1424530), (26, 712265), (65, 284906), (130, 142453)]