19492641

素因数分解:

$3^2\times 7^2\times {\mathrm{44201}}^1$

素因数の和:44221

約数の個数: 18

約数和(自身を含む): 32753682

約数和(自身を除く): 13261041

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 44201, 132603, 309407, 397809, 928221, 2165849, 2784663, 6497547, 19492641]

約数ペア:

[(1, 19492641), (3, 6497547), (7, 2784663), (9, 2165849), (21, 928221), (49, 397809), (63, 309407), (147, 132603), (441, 44201)]