218970862

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{401}}^1\times {\mathrm{24821}}^1$

素因数の和:25235

約数の個数: 16

約数和(自身を含む): 359223984

約数和(自身を除く): 140253122

約数列:

[1, 2, 11, 22, 401, 802, 4411, 8822, 24821, 49642, 273031, 546062, 9953221, 19906442, 109485431, 218970862]

約数ペア:

[(1, 218970862), (2, 109485431), (11, 19906442), (22, 9953221), (401, 546062), (802, 273031), (4411, 49642), (8822, 24821)]