21298021280

素因数分解:

$2^5\times 5^1\times {\mathrm{133112633}}^1$

素因数の和:133112648

約数の個数: 24

約数和(自身を含む): 50316575652

約数和(自身を除く): 29018554372

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 133112633, 266225266, 532450532, 665563165, 1064901064, 1331126330, 2129802128, 2662252660, 4259604256, 5324505320, 10649010640, 21298021280]

約数ペア:

[(1, 21298021280), (2, 10649010640), (4, 5324505320), (5, 4259604256), (8, 2662252660), (10, 2129802128), (16, 1331126330), (20, 1064901064), (32, 665563165), (40, 532450532), (80, 266225266), (160, 133112633)]