1991425743

素因数分解:

$3^4\times {\mathrm{263}}^1\times {\mathrm{93481}}^1$

素因数の和:93756

約数の個数: 20

約数和(自身を含む): 2986189008

約数和(自身を除く): 994763265

約数列:

[1, 3, 9, 27, 81, 263, 789, 2367, 7101, 21303, 93481, 280443, 841329, 2523987, 7571961, 24585503, 73756509, 221269527, 663808581, 1991425743]

約数ペア:

[(1, 1991425743), (3, 663808581), (9, 221269527), (27, 73756509), (81, 24585503), (263, 7571961), (789, 2523987), (2367, 841329), (7101, 280443), (21303, 93481)]