20998860

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{349981}}^1$

素因数の和:349993

約数の個数: 24

約数和(自身を含む): 58796976

約数和(自身を除く): 37798116

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 349981, 699962, 1049943, 1399924, 1749905, 2099886, 3499810, 4199772, 5249715, 6999620, 10499430, 20998860]

約数ペア:

[(1, 20998860), (2, 10499430), (3, 6999620), (4, 5249715), (5, 4199772), (6, 3499810), (10, 2099886), (12, 1749905), (15, 1399924), (20, 1049943), (30, 699962), (60, 349981)]