18810518

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{229}}^1\times {\mathrm{613}}^1$

素因数の和:911

約数の個数: 16

約数和(自身を含む): 28808880

約数和(自身を除く): 9998362

約数列:

[1, 2, 67, 134, 229, 458, 613, 1226, 15343, 30686, 41071, 82142, 140377, 280754, 9405259, 18810518]

約数ペア:

[(1, 18810518), (2, 9405259), (67, 280754), (134, 140377), (229, 82142), (458, 41071), (613, 30686), (1226, 15343)]