20671750

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7517}}^1$

素因数の和:7545

約数の個数: 32

約数和(自身を含む): 42221088

約数和(自身を除く): 21549338

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7517, 15034, 37585, 75170, 82687, 165374, 187925, 375850, 413435, 826870, 939625, 1879250, 2067175, 4134350, 10335875, 20671750]

約数ペア:

[(1, 20671750), (2, 10335875), (5, 4134350), (10, 2067175), (11, 1879250), (22, 939625), (25, 826870), (50, 413435), (55, 375850), (110, 187925), (125, 165374), (250, 82687), (275, 75170), (550, 37585), (1375, 15034), (2750, 7517)]