21243058

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{709}}^1$

素因数の和:993

約数の個数: 16

約数和(自身を含む): 32512320

約数和(自身を除く): 11269262

約数列:

[1, 2, 71, 142, 211, 422, 709, 1418, 14981, 29962, 50339, 100678, 149599, 299198, 10621529, 21243058]

約数ペア:

[(1, 21243058), (2, 10621529), (71, 299198), (142, 149599), (211, 100678), (422, 50339), (709, 29962), (1418, 14981)]