12889955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{6397}}^1$

素因数の和:6446

約数の個数: 16

約数和(自身を含む): 17197824

約数和(自身を除く): 4307869

約数列:

[1, 5, 13, 31, 65, 155, 403, 2015, 6397, 31985, 83161, 198307, 415805, 991535, 2577991, 12889955]

約数ペア:

[(1, 12889955), (5, 2577991), (13, 991535), (31, 415805), (65, 198307), (155, 83161), (403, 31985), (2015, 6397)]