21529750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7829}}^1$

素因数の和:7857

約数の個数: 32

約数和(自身を含む): 43973280

約数和(自身を除く): 22443530

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7829, 15658, 39145, 78290, 86119, 172238, 195725, 391450, 430595, 861190, 978625, 1957250, 2152975, 4305950, 10764875, 21529750]

約数ペア:

[(1, 21529750), (2, 10764875), (5, 4305950), (10, 2152975), (11, 1957250), (22, 978625), (25, 861190), (50, 430595), (55, 391450), (110, 195725), (125, 172238), (250, 86119), (275, 78290), (550, 39145), (1375, 15658), (2750, 7829)]