21284650

素因数分解:

$2^1\times 5^2\times {\mathrm{149}}^1\times {\mathrm{2857}}^1$

素因数の和:3018

約数の個数: 24

約数和(自身を含む): 39869100

約数和(自身を除く): 18584450

約数列:

[1, 2, 5, 10, 25, 50, 149, 298, 745, 1490, 2857, 3725, 5714, 7450, 14285, 28570, 71425, 142850, 425693, 851386, 2128465, 4256930, 10642325, 21284650]

約数ペア:

[(1, 21284650), (2, 10642325), (5, 4256930), (10, 2128465), (25, 851386), (50, 425693), (149, 142850), (298, 71425), (745, 28570), (1490, 14285), (2857, 7450), (3725, 5714)]