19664072

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{57163}}^1$

素因数の和:57212

約数の個数: 16

約数和(自身を含む): 37728240

約数和(自身を除く): 18064168

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 57163, 114326, 228652, 457304, 2458009, 4916018, 9832036, 19664072]

約数ペア:

[(1, 19664072), (2, 9832036), (4, 4916018), (8, 2458009), (43, 457304), (86, 228652), (172, 114326), (344, 57163)]