21120506

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{13151}}^1$

素因数の和:13237

約数の個数: 16

約数和(自身を含む): 35036928

約数和(自身を除く): 13916422

約数列:

[1, 2, 11, 22, 73, 146, 803, 1606, 13151, 26302, 144661, 289322, 960023, 1920046, 10560253, 21120506]

約数ペア:

[(1, 21120506), (2, 10560253), (11, 1920046), (22, 960023), (73, 289322), (146, 144661), (803, 26302), (1606, 13151)]