198155853

素因数分解:

$3^2\times 7^2\times {\mathrm{449333}}^1$

素因数の和:449353

約数の個数: 18

約数和(自身を含む): 332956494

約数和(自身を除く): 134800641

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 449333, 1347999, 3145331, 4043997, 9435993, 22017317, 28307979, 66051951, 198155853]

約数ペア:

[(1, 198155853), (3, 66051951), (7, 28307979), (9, 22017317), (21, 9435993), (49, 4043997), (63, 3145331), (147, 1347999), (441, 449333)]