21425695

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{443}}^1\times {\mathrm{569}}^1$

素因数の和:1034

約数の個数: 16

約数和(自身を含む): 27332640

約数和(自身を除く): 5906945

約数列:

[1, 5, 17, 85, 443, 569, 2215, 2845, 7531, 9673, 37655, 48365, 252067, 1260335, 4285139, 21425695]

約数ペア:

[(1, 21425695), (5, 4285139), (17, 1260335), (85, 252067), (443, 48365), (569, 37655), (2215, 9673), (2845, 7531)]