19940817

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{1063}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 29596224

約数和(自身を除く): 9655407

約数列:

[1, 3, 13, 37, 39, 111, 169, 481, 507, 1063, 1443, 3189, 6253, 13819, 18759, 39331, 41457, 117993, 179647, 511303, 538941, 1533909, 6646939, 19940817]

約数ペア:

[(1, 19940817), (3, 6646939), (13, 1533909), (37, 538941), (39, 511303), (111, 179647), (169, 117993), (481, 41457), (507, 39331), (1063, 18759), (1443, 13819), (3189, 6253)]