21138075

素因数分解:

$3^2\times 5^2\times 7^1\times {\mathrm{13421}}^1$

素因数の和:13444

約数の個数: 36

約数和(自身を含む): 43272528

約数和(自身を除く): 22134453

約数列:

[1, 3, 5, 7, 9, 15, 21, 25, 35, 45, 63, 75, 105, 175, 225, 315, 525, 1575, 13421, 40263, 67105, 93947, 120789, 201315, 281841, 335525, 469735, 603945, 845523, 1006575, 1409205, 2348675, 3019725, 4227615, 7046025, 21138075]

約数ペア:

[(1, 21138075), (3, 7046025), (5, 4227615), (7, 3019725), (9, 2348675), (15, 1409205), (21, 1006575), (25, 845523), (35, 603945), (45, 469735), (63, 335525), (75, 281841), (105, 201315), (175, 120789), (225, 93947), (315, 67105), (525, 40263), (1575, 13421)]