18309863

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 23708160

約数和(自身を除く): 5398297

約数列:

[1, 11, 13, 19, 23, 143, 209, 247, 253, 293, 299, 437, 2717, 3223, 3289, 3809, 4807, 5567, 5681, 6739, 41899, 61237, 62491, 72371, 74129, 87607, 128041, 796081, 963677, 1408451, 1664533, 18309863]

約数ペア:

[(1, 18309863), (11, 1664533), (13, 1408451), (19, 963677), (23, 796081), (143, 128041), (209, 87607), (247, 74129), (253, 72371), (293, 62491), (299, 61237), (437, 41899), (2717, 6739), (3223, 5681), (3289, 5567), (3809, 4807)]