389914903

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{418813}}^1$

素因数の和:418846

約数の個数: 12

約数和(自身を含む): 477447960

約数和(自身を除く): 87533057

約数列:

[1, 7, 19, 49, 133, 931, 418813, 2931691, 7957447, 20521837, 55702129, 389914903]

約数ペア:

[(1, 389914903), (7, 55702129), (19, 20521837), (49, 7957447), (133, 2931691), (931, 418813)]