18517208

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{157}}^1\times {\mathrm{641}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 36516960

約数和(自身を除く): 17999752

約数列:

[1, 2, 4, 8, 23, 46, 92, 157, 184, 314, 628, 641, 1256, 1282, 2564, 3611, 5128, 7222, 14444, 14743, 28888, 29486, 58972, 100637, 117944, 201274, 402548, 805096, 2314651, 4629302, 9258604, 18517208]

約数ペア:

[(1, 18517208), (2, 9258604), (4, 4629302), (8, 2314651), (23, 805096), (46, 402548), (92, 201274), (157, 117944), (184, 100637), (314, 58972), (628, 29486), (641, 28888), (1256, 14743), (1282, 14444), (2564, 7222), (3611, 5128)]