20715903

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{3001}}^1$

素因数の和:3079

約数の個数: 24

約数和(自身を含む): 32781840

約数和(自身を除く): 12065937

約数列:

[1, 3, 9, 13, 39, 59, 117, 177, 531, 767, 2301, 3001, 6903, 9003, 27009, 39013, 117039, 177059, 351117, 531177, 1593531, 2301767, 6905301, 20715903]

約数ペア:

[(1, 20715903), (3, 6905301), (9, 2301767), (13, 1593531), (39, 531177), (59, 351117), (117, 177059), (177, 117039), (531, 39013), (767, 27009), (2301, 9003), (3001, 6903)]