20356021

素因数分解:

$7^3\times {\mathrm{17}}^1\times {\mathrm{3491}}^1$

素因数の和:3529

約数の個数: 16

約数和(自身を含む): 25142400

約数和(自身を除く): 4786379

約数列:

[1, 7, 17, 49, 119, 343, 833, 3491, 5831, 24437, 59347, 171059, 415429, 1197413, 2908003, 20356021]

約数ペア:

[(1, 20356021), (7, 2908003), (17, 1197413), (49, 415429), (119, 171059), (343, 59347), (833, 24437), (3491, 5831)]