21904041

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{311}}^1\times {\mathrm{1381}}^1$

素因数の和:1712

約数の個数: 16

約数和(自身を含む): 31045248

約数和(自身を除く): 9141207

約数列:

[1, 3, 17, 51, 311, 933, 1381, 4143, 5287, 15861, 23477, 70431, 429491, 1288473, 7301347, 21904041]

約数ペア:

[(1, 21904041), (3, 7301347), (17, 1288473), (51, 429491), (311, 70431), (933, 23477), (1381, 15861), (4143, 5287)]