1799921493

素因数分解:

$3^4\times {\mathrm{89}}^1\times {\mathrm{249677}}^1$

素因数の和:249778

約数の個数: 20

約数和(自身を含む): 2718993420

約数和(自身を除く): 919071927

約数列:

[1, 3, 9, 27, 81, 89, 267, 801, 2403, 7209, 249677, 749031, 2247093, 6741279, 20223837, 22221253, 66663759, 199991277, 599973831, 1799921493]

約数ペア:

[(1, 1799921493), (3, 599973831), (9, 199991277), (27, 66663759), (81, 22221253), (89, 20223837), (267, 6741279), (801, 2247093), (2403, 749031), (7209, 249677)]