21425020

素因数分解:

$2^2\times 5^1\times {\mathrm{383}}^1\times {\mathrm{2797}}^1$

素因数の和:3189

約数の個数: 24

約数和(自身を含む): 45126144

約数和(自身を除く): 23701124

約数列:

[1, 2, 4, 5, 10, 20, 383, 766, 1532, 1915, 2797, 3830, 5594, 7660, 11188, 13985, 27970, 55940, 1071251, 2142502, 4285004, 5356255, 10712510, 21425020]

約数ペア:

[(1, 21425020), (2, 10712510), (4, 5356255), (5, 4285004), (10, 2142502), (20, 1071251), (383, 55940), (766, 27970), (1532, 13985), (1915, 11188), (2797, 7660), (3830, 5594)]