21597837

素因数分解:

$3^1\times {\mathrm{17}}^2\times {\mathrm{29}}^1\times {\mathrm{859}}^1$

素因数の和:925

約数の個数: 24

約数和(自身を含む): 31682400

約数和(自身を除く): 10084563

約数列:

[1, 3, 17, 29, 51, 87, 289, 493, 859, 867, 1479, 2577, 8381, 14603, 24911, 25143, 43809, 74733, 248251, 423487, 744753, 1270461, 7199279, 21597837]

約数ペア:

[(1, 21597837), (3, 7199279), (17, 1270461), (29, 744753), (51, 423487), (87, 248251), (289, 74733), (493, 43809), (859, 25143), (867, 24911), (1479, 14603), (2577, 8381)]