28321778

素因数分解:

$2^1\times {\mathrm{43}}^1\times {\mathrm{509}}^1\times {\mathrm{647}}^1$

素因数の和:1201

約数の個数: 16

約数和(自身を含む): 43623360

約数和(自身を除く): 15301582

約数列:

[1, 2, 43, 86, 509, 647, 1018, 1294, 21887, 27821, 43774, 55642, 329323, 658646, 14160889, 28321778]

約数ペア:

[(1, 28321778), (2, 14160889), (43, 658646), (86, 329323), (509, 55642), (647, 43774), (1018, 27821), (1294, 21887)]