21224164

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{431}}^1\times {\mathrm{947}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 40134528

約数和(自身を除く): 18910364

約数列:

[1, 2, 4, 13, 26, 52, 431, 862, 947, 1724, 1894, 3788, 5603, 11206, 12311, 22412, 24622, 49244, 408157, 816314, 1632628, 5306041, 10612082, 21224164]

約数ペア:

[(1, 21224164), (2, 10612082), (4, 5306041), (13, 1632628), (26, 816314), (52, 408157), (431, 49244), (862, 24622), (947, 22412), (1724, 12311), (1894, 11206), (3788, 5603)]