18207447

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{157}}^1$

素因数の和:263

約数の個数: 32

約数和(自身を含む): 26695680

約数和(自身を除く): 8488233

約数列:

[1, 3, 29, 31, 43, 87, 93, 129, 157, 471, 899, 1247, 1333, 2697, 3741, 3999, 4553, 4867, 6751, 13659, 14601, 20253, 38657, 115971, 141143, 195779, 209281, 423429, 587337, 627843, 6069149, 18207447]

約数ペア:

[(1, 18207447), (3, 6069149), (29, 627843), (31, 587337), (43, 423429), (87, 209281), (93, 195779), (129, 141143), (157, 115971), (471, 38657), (899, 20253), (1247, 14601), (1333, 13659), (2697, 6751), (3741, 4867), (3999, 4553)]