18572787

素因数分解:

$3^3\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{131}}^1$

素因数の和:288

約数の個数: 32

約数和(自身を含む): 28512000

約数和(自身を除く): 9939213

約数列:

[1, 3, 9, 27, 59, 89, 131, 177, 267, 393, 531, 801, 1179, 1593, 2403, 3537, 5251, 7729, 11659, 15753, 23187, 34977, 47259, 69561, 104931, 141777, 208683, 314793, 687881, 2063643, 6190929, 18572787]

約数ペア:

[(1, 18572787), (3, 6190929), (9, 2063643), (27, 687881), (59, 314793), (89, 208683), (131, 141777), (177, 104931), (267, 69561), (393, 47259), (531, 34977), (801, 23187), (1179, 15753), (1593, 11659), (2403, 7729), (3537, 5251)]