21605370

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{720179}}^1$

素因数の和:720189

約数の個数: 16

約数和(自身を含む): 51852960

約数和(自身を除く): 30247590

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 720179, 1440358, 2160537, 3600895, 4321074, 7201790, 10802685, 21605370]

約数ペア:

[(1, 21605370), (2, 10802685), (3, 7201790), (5, 4321074), (6, 3600895), (10, 2160537), (15, 1440358), (30, 720179)]