21507908

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{2347}}^1$

素因数の和:2459

約数の個数: 24

約数和(自身を含む): 39446400

約数和(自身を除く): 17938492

約数列:

[1, 2, 4, 29, 58, 79, 116, 158, 316, 2291, 2347, 4582, 4694, 9164, 9388, 68063, 136126, 185413, 272252, 370826, 741652, 5376977, 10753954, 21507908]

約数ペア:

[(1, 21507908), (2, 10753954), (4, 5376977), (29, 741652), (58, 370826), (79, 272252), (116, 185413), (158, 136126), (316, 68063), (2291, 9388), (2347, 9164), (4582, 4694)]