18878131489

素因数分解:

$7^1\times {\mathrm{181}}^1\times {\mathrm{389}}^1\times {\mathrm{38303}}^1$

素因数の和:38880

約数の個数: 16

約数和(自身を含む): 21750543360

約数和(自身を除く): 2872411871

約数列:

[1, 7, 181, 389, 1267, 2723, 38303, 70409, 268121, 492863, 6932843, 14899867, 48529901, 104299069, 2696875927, 18878131489]

約数ペア:

[(1, 18878131489), (7, 2696875927), (181, 104299069), (389, 48529901), (1267, 14899867), (2723, 6932843), (38303, 492863), (70409, 268121)]