2870721

素因数分解:

$3^4\times 7^1\times {\mathrm{61}}^1\times {\mathrm{83}}^1$

素因数の和:163

約数の個数: 40

約数和(自身を含む): 5041344

約数和(自身を除く): 2170623

約数列:

[1, 3, 7, 9, 21, 27, 61, 63, 81, 83, 183, 189, 249, 427, 549, 567, 581, 747, 1281, 1647, 1743, 2241, 3843, 4941, 5063, 5229, 6723, 11529, 15189, 15687, 34587, 35441, 45567, 47061, 106323, 136701, 318969, 410103, 956907, 2870721]

約数ペア:

[(1, 2870721), (3, 956907), (7, 410103), (9, 318969), (21, 136701), (27, 106323), (61, 47061), (63, 45567), (81, 35441), (83, 34587), (183, 15687), (189, 15189), (249, 11529), (427, 6723), (549, 5229), (567, 5063), (581, 4941), (747, 3843), (1281, 2241), (1647, 1743)]