18680577

素因数分解:

$3^1\times {\mathrm{23}}^2\times {\mathrm{79}}^1\times {\mathrm{149}}^1$

素因数の和:277

約数の個数: 24

約数和(自身を含む): 26544000

約数和(自身を除く): 7863423

約数列:

[1, 3, 23, 69, 79, 149, 237, 447, 529, 1587, 1817, 3427, 5451, 10281, 11771, 35313, 41791, 78821, 125373, 236463, 270733, 812199, 6226859, 18680577]

約数ペア:

[(1, 18680577), (3, 6226859), (23, 812199), (69, 270733), (79, 236463), (149, 125373), (237, 78821), (447, 41791), (529, 35313), (1587, 11771), (1817, 10281), (3427, 5451)]