18906699

素因数分解:

$3^1\times 7^2\times {\mathrm{41}}^1\times {\mathrm{3137}}^1$

素因数の和:3195

約数の個数: 24

約数和(自身を含む): 30049488

約数和(自身を除く): 11142789

約数列:

[1, 3, 7, 21, 41, 49, 123, 147, 287, 861, 2009, 3137, 6027, 9411, 21959, 65877, 128617, 153713, 385851, 461139, 900319, 2700957, 6302233, 18906699]

約数ペア:

[(1, 18906699), (3, 6302233), (7, 2700957), (21, 900319), (41, 461139), (49, 385851), (123, 153713), (147, 128617), (287, 65877), (861, 21959), (2009, 9411), (3137, 6027)]