81210885

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{110491}}^1$

素因数の和:110513

約数の個数: 24

約数和(自身を含む): 151153056

約数和(自身を除く): 69942171

約数列:

[1, 3, 5, 7, 15, 21, 35, 49, 105, 147, 245, 735, 110491, 331473, 552455, 773437, 1657365, 2320311, 3867185, 5414059, 11601555, 16242177, 27070295, 81210885]

約数ペア:

[(1, 81210885), (3, 27070295), (5, 16242177), (7, 11601555), (15, 5414059), (21, 3867185), (35, 2320311), (49, 1657365), (105, 773437), (147, 552455), (245, 331473), (735, 110491)]