21608540

素因数分解:

$2^2\times 5^1\times {\mathrm{929}}^1\times {\mathrm{1163}}^1$

素因数の和:2101

約数の個数: 24

約数和(自身を含む): 45465840

約数和(自身を除く): 23857300

約数列:

[1, 2, 4, 5, 10, 20, 929, 1163, 1858, 2326, 3716, 4645, 4652, 5815, 9290, 11630, 18580, 23260, 1080427, 2160854, 4321708, 5402135, 10804270, 21608540]

約数ペア:

[(1, 21608540), (2, 10804270), (4, 5402135), (5, 4321708), (10, 2160854), (20, 1080427), (929, 23260), (1163, 18580), (1858, 11630), (2326, 9290), (3716, 5815), (4645, 4652)]