247654809

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{12011}}^1$

素因数の和:12125

約数の個数: 24

約数和(自身を含む): 374774400

約数和(自身を除く): 127119591

約数列:

[1, 3, 9, 29, 79, 87, 237, 261, 711, 2291, 6873, 12011, 20619, 36033, 108099, 348319, 948869, 1044957, 2846607, 3134871, 8539821, 27517201, 82551603, 247654809]

約数ペア:

[(1, 247654809), (3, 82551603), (9, 27517201), (29, 8539821), (79, 3134871), (87, 2846607), (237, 1044957), (261, 948869), (711, 348319), (2291, 108099), (6873, 36033), (12011, 20619)]