221455725

素因数分解:

$3^1\times 5^2\times {\mathrm{223}}^1\times {\mathrm{13241}}^1$

素因数の和:13477

約数の個数: 24

約数和(自身を含む): 367809792

約数和(自身を除く): 146354067

約数列:

[1, 3, 5, 15, 25, 75, 223, 669, 1115, 3345, 5575, 13241, 16725, 39723, 66205, 198615, 331025, 993075, 2952743, 8858229, 14763715, 44291145, 73818575, 221455725]

約数ペア:

[(1, 221455725), (3, 73818575), (5, 44291145), (15, 14763715), (25, 8858229), (75, 2952743), (223, 993075), (669, 331025), (1115, 198615), (3345, 66205), (5575, 39723), (13241, 16725)]