19644656

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{72223}}^1$

素因数の和:72248

約数の個数: 20

約数和(自身を含む): 40300992

約数和(自身を除く): 20656336

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 72223, 144446, 288892, 577784, 1155568, 1227791, 2455582, 4911164, 9822328, 19644656]

約数ペア:

[(1, 19644656), (2, 9822328), (4, 4911164), (8, 2455582), (16, 1227791), (17, 1155568), (34, 577784), (68, 288892), (136, 144446), (272, 72223)]