21490190986

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{12364897}}^1$

素因数の和:12364989

約数の個数: 16

約数和(自身を含む): 35610906240

約数和(自身を除く): 14120715254

約数列:

[1, 2, 11, 22, 79, 158, 869, 1738, 12364897, 24729794, 136013867, 272027734, 976826863, 1953653726, 10745095493, 21490190986]

約数ペア:

[(1, 21490190986), (2, 10745095493), (11, 1953653726), (22, 976826863), (79, 272027734), (158, 136013867), (869, 24729794), (1738, 12364897)]