1900227519

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{263591}}^1$

素因数の和:263692

約数の個数: 20

約数和(自身を含む): 2870516880

約数和(自身を除く): 970289361

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 263591, 790773, 2372319, 7116957, 21350871, 23459599, 70378797, 211136391, 633409173, 1900227519]

約数ペア:

[(1, 1900227519), (3, 633409173), (9, 211136391), (27, 70378797), (81, 23459599), (89, 21350871), (267, 7116957), (801, 2372319), (2403, 790773), (7209, 263591)]