19986968

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{281}}^1\times {\mathrm{523}}^1$

素因数の和:827

約数の個数: 32

約数和(自身を含む): 39897360

約数和(自身を除く): 19910392

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 281, 523, 562, 1046, 1124, 2092, 2248, 4184, 4777, 8891, 9554, 17782, 19108, 35564, 38216, 71128, 146963, 293926, 587852, 1175704, 2498371, 4996742, 9993484, 19986968]

約数ペア:

[(1, 19986968), (2, 9993484), (4, 4996742), (8, 2498371), (17, 1175704), (34, 587852), (68, 293926), (136, 146963), (281, 71128), (523, 38216), (562, 35564), (1046, 19108), (1124, 17782), (2092, 9554), (2248, 8891), (4184, 4777)]