21266360

素因数分解:

$2^3\times 5^1\times {\mathrm{73}}^1\times {\mathrm{7283}}^1$

素因数の和:7367

約数の個数: 32

約数和(自身を含む): 48511440

約数和(自身を除く): 27245080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 73, 146, 292, 365, 584, 730, 1460, 2920, 7283, 14566, 29132, 36415, 58264, 72830, 145660, 291320, 531659, 1063318, 2126636, 2658295, 4253272, 5316590, 10633180, 21266360]

約数ペア:

[(1, 21266360), (2, 10633180), (4, 5316590), (5, 4253272), (8, 2658295), (10, 2126636), (20, 1063318), (40, 531659), (73, 291320), (146, 145660), (292, 72830), (365, 58264), (584, 36415), (730, 29132), (1460, 14566), (2920, 7283)]