4392387

素因数分解:

$3^4\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:480

約数の個数: 20

約数和(自身を含む): 6618216

約数和(自身を除く): 2225829

約数列:

[1, 3, 9, 27, 81, 211, 257, 633, 771, 1899, 2313, 5697, 6939, 17091, 20817, 54227, 162681, 488043, 1464129, 4392387]

約数ペア:

[(1, 4392387), (3, 1464129), (9, 488043), (27, 162681), (81, 54227), (211, 20817), (257, 17091), (633, 6939), (771, 5697), (1899, 2313)]