648531

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{241}}^1$

素因数の和:283

約数の個数: 24

約数和(自身を含む): 1057056

約数和(自身を除く): 408525

約数列:

[1, 3, 9, 13, 23, 39, 69, 117, 207, 241, 299, 723, 897, 2169, 2691, 3133, 5543, 9399, 16629, 28197, 49887, 72059, 216177, 648531]

約数ペア:

[(1, 648531), (3, 216177), (9, 72059), (13, 49887), (23, 28197), (39, 16629), (69, 9399), (117, 5543), (207, 3133), (241, 2691), (299, 2169), (723, 897)]