20661542

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{211}}^1\times {\mathrm{4451}}^1$

素因数の和:4675

約数の個数: 16

約数和(自身を含む): 33977664

約数和(自身を除く): 13316122

約数列:

[1, 2, 11, 22, 211, 422, 2321, 4451, 4642, 8902, 48961, 97922, 939161, 1878322, 10330771, 20661542]

約数ペア:

[(1, 20661542), (2, 10330771), (11, 1878322), (22, 939161), (211, 97922), (422, 48961), (2321, 8902), (4451, 4642)]