21693321

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{79}}^1\times {\mathrm{2347}}^1$

素因数の和:2445

約数の個数: 24

約数和(自身を含む): 34186880

約数和(自身を除く): 12493559

約数列:

[1, 3, 9, 13, 39, 79, 117, 237, 711, 1027, 2347, 3081, 7041, 9243, 21123, 30511, 91533, 185413, 274599, 556239, 1668717, 2410369, 7231107, 21693321]

約数ペア:

[(1, 21693321), (3, 7231107), (9, 2410369), (13, 1668717), (39, 556239), (79, 274599), (117, 185413), (237, 91533), (711, 30511), (1027, 21123), (2347, 9243), (3081, 7041)]