18542951

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{151}}^1\times {\mathrm{331}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 21800448

約数和(自身を除く): 3257497

約数列:

[1, 7, 53, 151, 331, 371, 1057, 2317, 8003, 17543, 49981, 56021, 122801, 349867, 2648993, 18542951]

約数ペア:

[(1, 18542951), (7, 2648993), (53, 349867), (151, 122801), (331, 56021), (371, 49981), (1057, 17543), (2317, 8003)]