20813404

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{179}}^1\times {\mathrm{709}}^1$

素因数の和:933

約数の個数: 24

約数和(自身を含む): 37573200

約数和(自身を除く): 16759796

約数列:

[1, 2, 4, 41, 82, 164, 179, 358, 709, 716, 1418, 2836, 7339, 14678, 29069, 29356, 58138, 116276, 126911, 253822, 507644, 5203351, 10406702, 20813404]

約数ペア:

[(1, 20813404), (2, 10406702), (4, 5203351), (41, 507644), (82, 253822), (164, 126911), (179, 116276), (358, 58138), (709, 29356), (716, 29069), (1418, 14678), (2836, 7339)]