21298021240

素因数分解:

$2^3\times 5^1\times {\mathrm{532450531}}^1$

素因数の和:532450542

約数の個数: 16

約数和(自身を含む): 47920547880

約数和(自身を除く): 26622526640

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 532450531, 1064901062, 2129802124, 2662252655, 4259604248, 5324505310, 10649010620, 21298021240]

約数ペア:

[(1, 21298021240), (2, 10649010620), (4, 5324505310), (5, 4259604248), (8, 2662252655), (10, 2129802124), (20, 1064901062), (40, 532450531)]