21081885

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1907}}^1$

素因数の和:1993

約数の個数: 32

約数和(自身を含む): 37366272

約数和(自身を除く): 16284387

約数列:

[1, 3, 5, 11, 15, 33, 55, 67, 165, 201, 335, 737, 1005, 1907, 2211, 3685, 5721, 9535, 11055, 20977, 28605, 62931, 104885, 127769, 314655, 383307, 638845, 1405459, 1916535, 4216377, 7027295, 21081885]

約数ペア:

[(1, 21081885), (3, 7027295), (5, 4216377), (11, 1916535), (15, 1405459), (33, 638845), (55, 383307), (67, 314655), (165, 127769), (201, 104885), (335, 62931), (737, 28605), (1005, 20977), (1907, 11055), (2211, 9535), (3685, 5721)]