21037245

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{82499}}^1$

素因数の和:82524

約数の個数: 16

約数和(自身を含む): 35640000

約数和(自身を除く): 14602755

約数列:

[1, 3, 5, 15, 17, 51, 85, 255, 82499, 247497, 412495, 1237485, 1402483, 4207449, 7012415, 21037245]

約数ペア:

[(1, 21037245), (3, 7012415), (5, 4207449), (15, 1402483), (17, 1237485), (51, 412495), (85, 247497), (255, 82499)]