21054920

素因数分解:

$2^3\times 5^1\times {\mathrm{526373}}^1$

素因数の和:526384

約数の個数: 16

約数和(自身を含む): 47373660

約数和(自身を除く): 26318740

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 526373, 1052746, 2105492, 2631865, 4210984, 5263730, 10527460, 21054920]

約数ペア:

[(1, 21054920), (2, 10527460), (4, 5263730), (5, 4210984), (8, 2631865), (10, 2105492), (20, 1052746), (40, 526373)]