18695914

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{151}}^1\times {\mathrm{1997}}^1$

素因数の和:2181

約数の個数: 16

約数和(自身を含む): 29154816

約数和(自身を除く): 10458902

約数列:

[1, 2, 31, 62, 151, 302, 1997, 3994, 4681, 9362, 61907, 123814, 301547, 603094, 9347957, 18695914]

約数ペア:

[(1, 18695914), (2, 9347957), (31, 603094), (62, 301547), (151, 123814), (302, 61907), (1997, 9362), (3994, 4681)]