20180798

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{39883}}^1$

素因数の和:39919

約数の個数: 16

約数和(自身を含む): 34459776

約数和(自身を除く): 14278978

約数列:

[1, 2, 11, 22, 23, 46, 253, 506, 39883, 79766, 438713, 877426, 917309, 1834618, 10090399, 20180798]

約数ペア:

[(1, 20180798), (2, 10090399), (11, 1834618), (22, 917309), (23, 877426), (46, 438713), (253, 79766), (506, 39883)]