21088725

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{40169}}^1$

素因数の和:40189

約数の個数: 24

約数和(自身を含む): 39848640

約数和(自身を除く): 18759915

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 40169, 120507, 200845, 281183, 602535, 843549, 1004225, 1405915, 3012675, 4217745, 7029575, 21088725]

約数ペア:

[(1, 21088725), (3, 7029575), (5, 4217745), (7, 3012675), (15, 1405915), (21, 1004225), (25, 843549), (35, 602535), (75, 281183), (105, 200845), (175, 120507), (525, 40169)]