21852385

素因数分解:

$5^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1$

素因数の和:193

約数の個数: 32

約数和(自身を含む): 28651392

約数和(自身を除く): 6799007

約数列:

[1, 5, 37, 41, 43, 67, 185, 205, 215, 335, 1517, 1591, 1763, 2479, 2747, 2881, 7585, 7955, 8815, 12395, 13735, 14405, 65231, 101639, 106597, 118121, 326155, 508195, 532985, 590605, 4370477, 21852385]

約数ペア:

[(1, 21852385), (5, 4370477), (37, 590605), (41, 532985), (43, 508195), (67, 326155), (185, 118121), (205, 106597), (215, 101639), (335, 65231), (1517, 14405), (1591, 13735), (1763, 12395), (2479, 8815), (2747, 7955), (2881, 7585)]