221086467

素因数分解:

$3^2\times 7^1\times {\mathrm{1559}}^1\times {\mathrm{2251}}^1$

素因数の和:3823

約数の個数: 24

約数和(自身を含む): 365364480

約数和(自身を除く): 144278013

約数列:

[1, 3, 7, 9, 21, 63, 1559, 2251, 4677, 6753, 10913, 14031, 15757, 20259, 32739, 47271, 98217, 141813, 3509309, 10527927, 24565163, 31583781, 73695489, 221086467]

約数ペア:

[(1, 221086467), (3, 73695489), (7, 31583781), (9, 24565163), (21, 10527927), (63, 3509309), (1559, 141813), (2251, 98217), (4677, 47271), (6753, 32739), (10913, 20259), (14031, 15757)]