28321456

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{104123}}^1$

素因数の和:104148

約数の個数: 20

約数和(自身を含む): 58101192

約数和(自身を除く): 29779736

約数列:

[1, 2, 4, 8, 16, 17, 34, 68, 136, 272, 104123, 208246, 416492, 832984, 1665968, 1770091, 3540182, 7080364, 14160728, 28321456]

約数ペア:

[(1, 28321456), (2, 14160728), (4, 7080364), (8, 3540182), (16, 1770091), (17, 1665968), (34, 832984), (68, 416492), (136, 208246), (272, 104123)]