20901349

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{3833}}^1$

素因数の和:3900

約数の個数: 16

約数和(自身を含む): 25764480

約数和(自身を除く): 4863131

約数列:

[1, 7, 19, 41, 133, 287, 779, 3833, 5453, 26831, 72827, 157153, 509789, 1100071, 2985907, 20901349]

約数ペア:

[(1, 20901349), (7, 2985907), (19, 1100071), (41, 509789), (133, 157153), (287, 72827), (779, 26831), (3833, 5453)]