1288894437

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{260857}}^1$

素因数の和:260930

約数の個数: 20

約数和(自身を含む): 1956956716

約数和(自身を除く): 668062279

約数列:

[1, 3, 9, 27, 61, 81, 183, 549, 1647, 4941, 260857, 782571, 2347713, 7043139, 15912277, 21129417, 47736831, 143210493, 429631479, 1288894437]

約数ペア:

[(1, 1288894437), (3, 429631479), (9, 143210493), (27, 47736831), (61, 21129417), (81, 15912277), (183, 7043139), (549, 2347713), (1647, 782571), (4941, 260857)]