28181168

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{40961}}^1$

素因数の和:41012

約数の個数: 20

約数和(自身を含む): 55872168

約数和(自身を除く): 27691000

約数列:

[1, 2, 4, 8, 16, 43, 86, 172, 344, 688, 40961, 81922, 163844, 327688, 655376, 1761323, 3522646, 7045292, 14090584, 28181168]

約数ペア:

[(1, 28181168), (2, 14090584), (4, 7045292), (8, 3522646), (16, 1761323), (43, 655376), (86, 327688), (172, 163844), (344, 81922), (688, 40961)]