21675088

素因数分解:

$2^4\times {\mathrm{163}}^1\times {\mathrm{8311}}^1$

素因数の和:8482

約数の個数: 20

約数和(自身を含む): 42258208

約数和(自身を除く): 20583120

約数列:

[1, 2, 4, 8, 16, 163, 326, 652, 1304, 2608, 8311, 16622, 33244, 66488, 132976, 1354693, 2709386, 5418772, 10837544, 21675088]

約数ペア:

[(1, 21675088), (2, 10837544), (4, 5418772), (8, 2709386), (16, 1354693), (163, 132976), (326, 66488), (652, 33244), (1304, 16622), (2608, 8311)]