16984955

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{809}}^1$

素因数の和:863

約数の個数: 32

約数和(自身を含む): 24494400

約数和(自身を除く): 7509445

約数列:

[1, 5, 13, 17, 19, 65, 85, 95, 221, 247, 323, 809, 1105, 1235, 1615, 4045, 4199, 10517, 13753, 15371, 20995, 52585, 68765, 76855, 178789, 199823, 261307, 893945, 999115, 1306535, 3396991, 16984955]

約数ペア:

[(1, 16984955), (5, 3396991), (13, 1306535), (17, 999115), (19, 893945), (65, 261307), (85, 199823), (95, 178789), (221, 76855), (247, 68765), (323, 52585), (809, 20995), (1105, 15371), (1235, 13753), (1615, 10517), (4045, 4199)]