18678291

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{173}}^1$

素因数の和:295

約数の個数: 32

約数和(自身を含む): 27812160

約数和(自身を除く): 9133869

約数列:

[1, 3, 17, 29, 51, 73, 87, 173, 219, 493, 519, 1241, 1479, 2117, 2941, 3723, 5017, 6351, 8823, 12629, 15051, 35989, 37887, 85289, 107967, 214693, 255867, 366241, 644079, 1098723, 6226097, 18678291]

約数ペア:

[(1, 18678291), (3, 6226097), (17, 1098723), (29, 644079), (51, 366241), (73, 255867), (87, 214693), (173, 107967), (219, 85289), (493, 37887), (519, 35989), (1241, 15051), (1479, 12629), (2117, 8823), (2941, 6351), (3723, 5017)]