21122127

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{1543}}^1$

素因数の和:1581

約数の個数: 30

約数和(自身を含む): 34188792

約数和(自身を除く): 13066665

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 169, 351, 507, 1053, 1521, 1543, 4563, 4629, 13689, 13887, 20059, 41661, 60177, 124983, 180531, 260767, 541593, 782301, 1624779, 2346903, 7040709, 21122127]

約数ペア:

[(1, 21122127), (3, 7040709), (9, 2346903), (13, 1624779), (27, 782301), (39, 541593), (81, 260767), (117, 180531), (169, 124983), (351, 60177), (507, 41661), (1053, 20059), (1521, 13887), (1543, 13689), (4563, 4629)]