21802040

素因数分解:

$2^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41927}}^1$

素因数の和:41951

約数の個数: 32

約数和(自身を含む): 52829280

約数和(自身を除く): 31027240

約数列:

[1, 2, 4, 5, 8, 10, 13, 20, 26, 40, 52, 65, 104, 130, 260, 520, 41927, 83854, 167708, 209635, 335416, 419270, 545051, 838540, 1090102, 1677080, 2180204, 2725255, 4360408, 5450510, 10901020, 21802040]

約数ペア:

[(1, 21802040), (2, 10901020), (4, 5450510), (5, 4360408), (8, 2725255), (10, 2180204), (13, 1677080), (20, 1090102), (26, 838540), (40, 545051), (52, 419270), (65, 335416), (104, 209635), (130, 167708), (260, 83854), (520, 41927)]