18579998

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{7621}}^1$

素因数の和:7699

約数の個数: 16

約数和(自身を含む): 29634336

約数和(自身を除く): 11054338

約数列:

[1, 2, 23, 46, 53, 106, 1219, 2438, 7621, 15242, 175283, 350566, 403913, 807826, 9289999, 18579998]

約数ペア:

[(1, 18579998), (2, 9289999), (23, 807826), (46, 403913), (53, 350566), (106, 175283), (1219, 15242), (2438, 7621)]