21347264

素因数分解:

$2^6\times {\mathrm{43}}^1\times {\mathrm{7757}}^1$

素因数の和:7812

約数の個数: 28

約数和(自身を含む): 43351704

約数和(自身を除く): 22004440

約数列:

[1, 2, 4, 8, 16, 32, 43, 64, 86, 172, 344, 688, 1376, 2752, 7757, 15514, 31028, 62056, 124112, 248224, 333551, 496448, 667102, 1334204, 2668408, 5336816, 10673632, 21347264]

約数ペア:

[(1, 21347264), (2, 10673632), (4, 5336816), (8, 2668408), (16, 1334204), (32, 667102), (43, 496448), (64, 333551), (86, 248224), (172, 124112), (344, 62056), (688, 31028), (1376, 15514), (2752, 7757)]