81272786

素因数分解:

$2^1\times 7^1\times {\mathrm{263}}^1\times {\mathrm{22073}}^1$

素因数の和:22345

約数の個数: 16

約数和(自身を含む): 139860864

約数和(自身を除く): 58588078

約数列:

[1, 2, 7, 14, 263, 526, 1841, 3682, 22073, 44146, 154511, 309022, 5805199, 11610398, 40636393, 81272786]

約数ペア:

[(1, 81272786), (2, 40636393), (7, 11610398), (14, 5805199), (263, 309022), (526, 154511), (1841, 44146), (3682, 22073)]