221401425

素因数分解:

$3^1\times 5^2\times 7^1\times {\mathrm{421717}}^1$

素因数の和:421737

約数の個数: 24

約数和(自身を含む): 418344256

約数和(自身を除く): 196942831

約数列:

[1, 3, 5, 7, 15, 21, 25, 35, 75, 105, 175, 525, 421717, 1265151, 2108585, 2952019, 6325755, 8856057, 10542925, 14760095, 31628775, 44280285, 73800475, 221401425]

約数ペア:

[(1, 221401425), (3, 73800475), (5, 44280285), (7, 31628775), (15, 14760095), (21, 10542925), (25, 8856057), (35, 6325755), (75, 2952019), (105, 2108585), (175, 1265151), (525, 421717)]