20756619

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4327}}^1$

素因数の和:4387

約数の個数: 24

約数和(自身を含む): 33083232

約数和(自身を除く): 12326613

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4327, 4797, 12981, 38943, 56251, 168753, 177407, 506259, 532221, 1596663, 2306291, 6918873, 20756619]

約数ペア:

[(1, 20756619), (3, 6918873), (9, 2306291), (13, 1596663), (39, 532221), (41, 506259), (117, 177407), (123, 168753), (369, 56251), (533, 38943), (1599, 12981), (4327, 4797)]