21895550

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2939}}^1$

素因数の和:3100

約数の個数: 24

約数和(自身を含む): 41013000

約数和(自身を除く): 19117450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2939, 3725, 5878, 7450, 14695, 29390, 73475, 146950, 437911, 875822, 2189555, 4379110, 10947775, 21895550]

約数ペア:

[(1, 21895550), (2, 10947775), (5, 4379110), (10, 2189555), (25, 875822), (50, 437911), (149, 146950), (298, 73475), (745, 29390), (1490, 14695), (2939, 7450), (3725, 5878)]