18219358

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{61}}^1\times {\mathrm{151}}^1$

素因数の和:280

約数の個数: 32

約数和(自身を含む): 29855232

約数和(自身を除く): 11635874

約数列:

[1, 2, 23, 43, 46, 61, 86, 122, 151, 302, 989, 1403, 1978, 2623, 2806, 3473, 5246, 6493, 6946, 9211, 12986, 18422, 60329, 120658, 149339, 211853, 298678, 396073, 423706, 792146, 9109679, 18219358]

約数ペア:

[(1, 18219358), (2, 9109679), (23, 792146), (43, 423706), (46, 396073), (61, 298678), (86, 211853), (122, 149339), (151, 120658), (302, 60329), (989, 18422), (1403, 12986), (1978, 9211), (2623, 6946), (2806, 6493), (3473, 5246)]