12728877

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{661}}^1$

素因数の和:809

約数の個数: 24

約数和(自身を含む): 19923552

約数和(自身を除く): 7194675

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 661, 917, 1983, 2751, 4627, 6419, 13881, 19257, 32389, 86591, 97167, 259773, 606137, 1818411, 4242959, 12728877]

約数ペア:

[(1, 12728877), (3, 4242959), (7, 1818411), (21, 606137), (49, 259773), (131, 97167), (147, 86591), (393, 32389), (661, 19257), (917, 13881), (1983, 6419), (2751, 4627)]