2158436

素因数分解:

$2^2\times 7^1\times {\mathrm{157}}^1\times {\mathrm{491}}^1$

素因数の和:659

約数の個数: 24

約数和(自身を含む): 4353216

約数和(自身を除く): 2194780

約数列:

[1, 2, 4, 7, 14, 28, 157, 314, 491, 628, 982, 1099, 1964, 2198, 3437, 4396, 6874, 13748, 77087, 154174, 308348, 539609, 1079218, 2158436]

約数ペア:

[(1, 2158436), (2, 1079218), (4, 539609), (7, 308348), (14, 154174), (28, 77087), (157, 13748), (314, 6874), (491, 4396), (628, 3437), (982, 2198), (1099, 1964)]