21372920

素因数分解:

$2^3\times 5^1\times {\mathrm{534323}}^1$

素因数の和:534334

約数の個数: 16

約数和(自身を含む): 48089160

約数和(自身を除く): 26716240

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 534323, 1068646, 2137292, 2671615, 4274584, 5343230, 10686460, 21372920]

約数ペア:

[(1, 21372920), (2, 10686460), (4, 5343230), (5, 4274584), (8, 2671615), (10, 2137292), (20, 1068646), (40, 534323)]