18399356

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{4651}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 34387584

約数和(自身を除く): 15988228

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 4651, 9302, 18604, 106973, 199993, 213946, 399986, 427892, 799972, 4599839, 9199678, 18399356]

約数ペア:

[(1, 18399356), (2, 9199678), (4, 4599839), (23, 799972), (43, 427892), (46, 399986), (86, 213946), (92, 199993), (172, 106973), (989, 18604), (1978, 9302), (3956, 4651)]