21906620

素因数分解:

$2^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{57649}}^1$

素因数の和:57677

約数の個数: 24

約数和(自身を含む): 48426000

約数和(自身を除く): 26519380

約数列:

[1, 2, 4, 5, 10, 19, 20, 38, 76, 95, 190, 380, 57649, 115298, 230596, 288245, 576490, 1095331, 1152980, 2190662, 4381324, 5476655, 10953310, 21906620]

約数ペア:

[(1, 21906620), (2, 10953310), (4, 5476655), (5, 4381324), (10, 2190662), (19, 1152980), (20, 1095331), (38, 576490), (76, 288245), (95, 230596), (190, 115298), (380, 57649)]