18363681

素因数分解:

$3^2\times 7^2\times {\mathrm{41641}}^1$

素因数の和:41661

約数の個数: 18

約数和(自身を含む): 30856722

約数和(自身を除く): 12493041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 41641, 124923, 291487, 374769, 874461, 2040409, 2623383, 6121227, 18363681]

約数ペア:

[(1, 18363681), (3, 6121227), (7, 2623383), (9, 2040409), (21, 874461), (49, 374769), (63, 291487), (147, 124923), (441, 41641)]