21021450

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{140143}}^1$

素因数の和:140158

約数の個数: 24

約数和(自身を含む): 52133568

約数和(自身を除く): 31112118

約数列:

[1, 2, 3, 5, 6, 10, 15, 25, 30, 50, 75, 150, 140143, 280286, 420429, 700715, 840858, 1401430, 2102145, 3503575, 4204290, 7007150, 10510725, 21021450]

約数ペア:

[(1, 21021450), (2, 10510725), (3, 7007150), (5, 4204290), (6, 3503575), (10, 2102145), (15, 1401430), (25, 840858), (30, 700715), (50, 420429), (75, 280286), (150, 140143)]