21643735

素因数分解:

$5^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{2971}}^1$

素因数の和:3054

約数の個数: 16

約数和(自身を含む): 27389952

約数和(自身を除く): 5746217

約数列:

[1, 5, 31, 47, 155, 235, 1457, 2971, 7285, 14855, 92101, 139637, 460505, 698185, 4328747, 21643735]

約数ペア:

[(1, 21643735), (5, 4328747), (31, 698185), (47, 460505), (155, 139637), (235, 92101), (1457, 14855), (2971, 7285)]