20137929

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{1231}}^1$

素因数の和:1301

約数の個数: 32

約数和(自身を含む): 33116160

約数和(自身を除く): 12978231

約数列:

[1, 3, 7, 19, 21, 41, 57, 123, 133, 287, 399, 779, 861, 1231, 2337, 3693, 5453, 8617, 16359, 23389, 25851, 50471, 70167, 151413, 163723, 353297, 491169, 958949, 1059891, 2876847, 6712643, 20137929]

約数ペア:

[(1, 20137929), (3, 6712643), (7, 2876847), (19, 1059891), (21, 958949), (41, 491169), (57, 353297), (123, 163723), (133, 151413), (287, 70167), (399, 50471), (779, 25851), (861, 23389), (1231, 16359), (2337, 8617), (3693, 5453)]