18911730

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{630391}}^1$

素因数の和:630401

約数の個数: 16

約数和(自身を含む): 45388224

約数和(自身を除く): 26476494

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 630391, 1260782, 1891173, 3151955, 3782346, 6303910, 9455865, 18911730]

約数ペア:

[(1, 18911730), (2, 9455865), (3, 6303910), (5, 3782346), (6, 3151955), (10, 1891173), (15, 1260782), (30, 630391)]