19720467

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{4111}}^1$

素因数の和:4171

約数の個数: 24

約数和(自身を含む): 31432128

約数和(自身を除く): 11711661

約数列:

[1, 3, 9, 13, 39, 41, 117, 123, 369, 533, 1599, 4111, 4797, 12333, 36999, 53443, 160329, 168551, 480987, 505653, 1516959, 2191163, 6573489, 19720467]

約数ペア:

[(1, 19720467), (3, 6573489), (9, 2191163), (13, 1516959), (39, 505653), (41, 480987), (117, 168551), (123, 160329), (369, 53443), (533, 36999), (1599, 12333), (4111, 4797)]