21499018915

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{9533933}}^1$

素因数の和:9533990

約数の個数: 16

約数和(自身を含む): 28830616416

約数和(自身を除く): 7331597501

約数列:

[1, 5, 11, 41, 55, 205, 451, 2255, 9533933, 47669665, 104873263, 390891253, 524366315, 1954456265, 4299803783, 21499018915]

約数ペア:

[(1, 21499018915), (5, 4299803783), (11, 1954456265), (41, 524366315), (55, 390891253), (205, 104873263), (451, 47669665), (2255, 9533933)]