21367725

素因数分解:

$3^1\times 5^2\times {\mathrm{17}}^1\times {\mathrm{16759}}^1$

素因数の和:16789

約数の個数: 24

約数和(自身を含む): 37408320

約数和(自身を除く): 16040595

約数列:

[1, 3, 5, 15, 17, 25, 51, 75, 85, 255, 425, 1275, 16759, 50277, 83795, 251385, 284903, 418975, 854709, 1256925, 1424515, 4273545, 7122575, 21367725]

約数ペア:

[(1, 21367725), (3, 7122575), (5, 4273545), (15, 1424515), (17, 1256925), (25, 854709), (51, 418975), (75, 284903), (85, 251385), (255, 83795), (425, 50277), (1275, 16759)]