19933249

素因数分解:

$7^2\times {\mathrm{23}}^2\times {\mathrm{769}}^1$

素因数の和:829

約数の個数: 18

約数和(自身を含む): 24271170

約数和(自身を除く): 4337921

約数列:

[1, 7, 23, 49, 161, 529, 769, 1127, 3703, 5383, 17687, 25921, 37681, 123809, 406801, 866663, 2847607, 19933249]

約数ペア:

[(1, 19933249), (7, 2847607), (23, 866663), (49, 406801), (161, 123809), (529, 37681), (769, 25921), (1127, 17687), (3703, 5383)]