21112325920

素因数分解:

$2^5\times 5^1\times 7^1\times {\mathrm{18850291}}^1$

素因数の和:18850313

約数の個数: 48

約数和(自身を含む): 57003283008

約数和(自身を除く): 35890957088

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 16, 20, 28, 32, 35, 40, 56, 70, 80, 112, 140, 160, 224, 280, 560, 1120, 18850291, 37700582, 75401164, 94251455, 131952037, 150802328, 188502910, 263904074, 301604656, 377005820, 527808148, 603209312, 659760185, 754011640, 1055616296, 1319520370, 1508023280, 2111232592, 2639040740, 3016046560, 4222465184, 5278081480, 10556162960, 21112325920]

約数ペア:

[(1, 21112325920), (2, 10556162960), (4, 5278081480), (5, 4222465184), (7, 3016046560), (8, 2639040740), (10, 2111232592), (14, 1508023280), (16, 1319520370), (20, 1055616296), (28, 754011640), (32, 659760185), (35, 603209312), (40, 527808148), (56, 377005820), (70, 301604656), (80, 263904074), (112, 188502910), (140, 150802328), (160, 131952037), (224, 94251455), (280, 75401164), (560, 37700582), (1120, 18850291)]