398746798

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{139}}^2\times {\mathrm{607}}^1$

素因数の和:904

約数の個数: 24

約数和(自身を含む): 638943552

約数和(自身を除く): 240196754

約数列:

[1, 2, 17, 34, 139, 278, 607, 1214, 2363, 4726, 10319, 19321, 20638, 38642, 84373, 168746, 328457, 656914, 1434341, 2868682, 11727847, 23455694, 199373399, 398746798]

約数ペア:

[(1, 398746798), (2, 199373399), (17, 23455694), (34, 11727847), (139, 2868682), (278, 1434341), (607, 656914), (1214, 328457), (2363, 168746), (4726, 84373), (10319, 38642), (19321, 20638)]