21717075

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{17033}}^1$

素因数の和:17063

約数の個数: 24

約数和(自身を含む): 38019888

約数和(自身を除く): 16302813

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 17033, 51099, 85165, 255495, 289561, 425825, 868683, 1277475, 1447805, 4343415, 7239025, 21717075]

約数ペア:

[(1, 21717075), (3, 7239025), (5, 4343415), (15, 1447805), (17, 1277475), (25, 868683), (51, 425825), (75, 289561), (85, 255495), (255, 85165), (425, 51099), (1275, 17033)]