16561940

素因数分解:

$2^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{22381}}^1$

素因数の和:22427

約数の個数: 24

約数和(自身を含む): 35721672

約数和(自身を除く): 19159732

約数列:

[1, 2, 4, 5, 10, 20, 37, 74, 148, 185, 370, 740, 22381, 44762, 89524, 111905, 223810, 447620, 828097, 1656194, 3312388, 4140485, 8280970, 16561940]

約数ペア:

[(1, 16561940), (2, 8280970), (4, 4140485), (5, 3312388), (10, 1656194), (20, 828097), (37, 447620), (74, 223810), (148, 111905), (185, 89524), (370, 44762), (740, 22381)]