20179933179

素因数分解:

$3^1\times 7^2\times {\mathrm{137278457}}^1$

素因数の和:137278474

約数の個数: 12

約数和(自身を含む): 31299488424

約数和(自身を除く): 11119555245

約数列:

[1, 3, 7, 21, 49, 147, 137278457, 411835371, 960949199, 2882847597, 6726644393, 20179933179]

約数ペア:

[(1, 20179933179), (3, 6726644393), (7, 2882847597), (21, 960949199), (49, 411835371), (147, 137278457)]