1971990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{21911}}^1$

素因数の和:21924

約数の個数: 24

約数和(自身を含む): 5127408

約数和(自身を除く): 3155418

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 21911, 43822, 65733, 109555, 131466, 197199, 219110, 328665, 394398, 657330, 985995, 1971990]

約数ペア:

[(1, 1971990), (2, 985995), (3, 657330), (5, 394398), (6, 328665), (9, 219110), (10, 197199), (15, 131466), (18, 109555), (30, 65733), (45, 43822), (90, 21911)]