20178958

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1\times {\mathrm{977}}^1$

素因数の和:1451

約数の個数: 16

約数和(自身を含む): 31687200

約数和(自身を除く): 11508242

約数列:

[1, 2, 23, 46, 449, 898, 977, 1954, 10327, 20654, 22471, 44942, 438673, 877346, 10089479, 20178958]

約数ペア:

[(1, 20178958), (2, 10089479), (23, 877346), (46, 438673), (449, 44942), (898, 22471), (977, 20654), (1954, 10327)]