20704490

素因数分解:

$2^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{108971}}^1$

素因数の和:108997

約数の個数: 16

約数和(自身を含む): 39229920

約数和(自身を除く): 18525430

約数列:

[1, 2, 5, 10, 19, 38, 95, 190, 108971, 217942, 544855, 1089710, 2070449, 4140898, 10352245, 20704490]

約数ペア:

[(1, 20704490), (2, 10352245), (5, 4140898), (10, 2070449), (19, 1089710), (38, 544855), (95, 217942), (190, 108971)]