2154519

素因数分解:

$3^4\times {\mathrm{67}}^1\times {\mathrm{397}}^1$

素因数の和:476

約数の個数: 20

約数和(自身を含む): 3274744

約数和(自身を除く): 1120225

約数列:

[1, 3, 9, 27, 67, 81, 201, 397, 603, 1191, 1809, 3573, 5427, 10719, 26599, 32157, 79797, 239391, 718173, 2154519]

約数ペア:

[(1, 2154519), (3, 718173), (9, 239391), (27, 79797), (67, 32157), (81, 26599), (201, 10719), (397, 5427), (603, 3573), (1191, 1809)]