20004969

素因数分解:

$3^1\times {\mathrm{101}}^1\times {\mathrm{103}}^1\times {\mathrm{641}}^1$

素因数の和:848

約数の個数: 16

約数和(自身を含む): 27241344

約数和(自身を除く): 7236375

約数列:

[1, 3, 101, 103, 303, 309, 641, 1923, 10403, 31209, 64741, 66023, 194223, 198069, 6668323, 20004969]

約数ペア:

[(1, 20004969), (3, 6668323), (101, 198069), (103, 194223), (303, 66023), (309, 64741), (641, 31209), (1923, 10403)]