20091518

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{15971}}^1$

素因数の和:16027

約数の個数: 16

約数和(自身を含む): 32774544

約数和(自身を除く): 12683026

約数列:

[1, 2, 17, 34, 37, 74, 629, 1258, 15971, 31942, 271507, 543014, 590927, 1181854, 10045759, 20091518]

約数ペア:

[(1, 20091518), (2, 10045759), (17, 1181854), (34, 590927), (37, 543014), (74, 271507), (629, 31942), (1258, 15971)]