28447119

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{11329}}^1$

素因数の和:11372

約数の個数: 20

約数和(自身を含む): 43869760

約数和(自身を除く): 15422641

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 11329, 33987, 101961, 305883, 351199, 917649, 1053597, 3160791, 9482373, 28447119]

約数ペア:

[(1, 28447119), (3, 9482373), (9, 3160791), (27, 1053597), (31, 917649), (81, 351199), (93, 305883), (279, 101961), (837, 33987), (2511, 11329)]