19969016

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{359}}^1\times {\mathrm{409}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 39852000

約数和(自身を除く): 19882984

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 359, 409, 718, 818, 1436, 1636, 2872, 3272, 6103, 6953, 12206, 13906, 24412, 27812, 48824, 55624, 146831, 293662, 587324, 1174648, 2496127, 4992254, 9984508, 19969016]

約数ペア:

[(1, 19969016), (2, 9984508), (4, 4992254), (8, 2496127), (17, 1174648), (34, 587324), (68, 293662), (136, 146831), (359, 55624), (409, 48824), (718, 27812), (818, 24412), (1436, 13906), (1636, 12206), (2872, 6953), (3272, 6103)]