19998256

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{73523}}^1$

素因数の和:73548

約数の個数: 20

約数和(自身を含む): 41026392

約数和(自身を除く): 21028136

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 73523, 147046, 294092, 588184, 1176368, 1249891, 2499782, 4999564, 9999128, 19998256]

約数ペア:

[(1, 19998256), (2, 9999128), (4, 4999564), (8, 2499782), (16, 1249891), (17, 1176368), (34, 588184), (68, 294092), (136, 147046), (272, 73523)]