20851918347

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{461}}^1\times {\mathrm{19013}}^1$

素因数の和:19551

約数の個数: 32

約数和(自身を含む): 30499672896

約数和(自身を除く): 9647754549

約数列:

[1, 3, 13, 39, 61, 183, 461, 793, 1383, 2379, 5993, 17979, 19013, 28121, 57039, 84363, 247169, 365573, 741507, 1096719, 1159793, 3479379, 8764993, 15077309, 26294979, 45231927, 113944909, 341834727, 534664573, 1603993719, 6950639449, 20851918347]

約数ペア:

[(1, 20851918347), (3, 6950639449), (13, 1603993719), (39, 534664573), (61, 341834727), (183, 113944909), (461, 45231927), (793, 26294979), (1383, 15077309), (2379, 8764993), (5993, 3479379), (17979, 1159793), (19013, 1096719), (28121, 741507), (57039, 365573), (84363, 247169)]