2691387

素因数分解:

$3^4\times {\mathrm{149}}^1\times {\mathrm{223}}^1$

素因数の和:384

約数の個数: 20

約数和(自身を含む): 4065600

約数和(自身を除く): 1374213

約数列:

[1, 3, 9, 27, 81, 149, 223, 447, 669, 1341, 2007, 4023, 6021, 12069, 18063, 33227, 99681, 299043, 897129, 2691387]

約数ペア:

[(1, 2691387), (3, 897129), (9, 299043), (27, 99681), (81, 33227), (149, 18063), (223, 12069), (447, 6021), (669, 4023), (1341, 2007)]