21051990

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{233911}}^1$

素因数の和:233924

約数の個数: 24

約数和(自身を含む): 54735408

約数和(自身を除く): 33683418

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 45, 90, 233911, 467822, 701733, 1169555, 1403466, 2105199, 2339110, 3508665, 4210398, 7017330, 10525995, 21051990]

約数ペア:

[(1, 21051990), (2, 10525995), (3, 7017330), (5, 4210398), (6, 3508665), (9, 2339110), (10, 2105199), (15, 1403466), (18, 1169555), (30, 701733), (45, 467822), (90, 233911)]