81378531

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{30241}}^1$

素因数の和:30283

約数の個数: 24

約数和(自身を含む): 132097056

約数和(自身を除く): 50718525

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 299, 897, 2691, 30241, 90723, 272169, 393133, 695543, 1179399, 2086629, 3538197, 6259887, 9042059, 27126177, 81378531]

約数ペア:

[(1, 81378531), (3, 27126177), (9, 9042059), (13, 6259887), (23, 3538197), (39, 2086629), (69, 1179399), (117, 695543), (207, 393133), (299, 272169), (897, 90723), (2691, 30241)]