21785814

素因数分解:

$2^1\times 3^3\times {\mathrm{439}}^1\times {\mathrm{919}}^1$

素因数の和:1369

約数の個数: 32

約数和(自身を含む): 48576000

約数和(自身を除く): 26790186

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 439, 878, 919, 1317, 1838, 2634, 2757, 3951, 5514, 7902, 8271, 11853, 16542, 23706, 24813, 49626, 403441, 806882, 1210323, 2420646, 3630969, 7261938, 10892907, 21785814]

約数ペア:

[(1, 21785814), (2, 10892907), (3, 7261938), (6, 3630969), (9, 2420646), (18, 1210323), (27, 806882), (54, 403441), (439, 49626), (878, 24813), (919, 23706), (1317, 16542), (1838, 11853), (2634, 8271), (2757, 7902), (3951, 5514)]