21789136

素因数分解:

$2^4\times {\mathrm{127}}^1\times {\mathrm{10723}}^1$

素因数の和:10858

約数の個数: 20

約数和(自身を含む): 42552832

約数和(自身を除く): 20763696

約数列:

[1, 2, 4, 8, 16, 127, 254, 508, 1016, 2032, 10723, 21446, 42892, 85784, 171568, 1361821, 2723642, 5447284, 10894568, 21789136]

約数ペア:

[(1, 21789136), (2, 10894568), (4, 5447284), (8, 2723642), (16, 1361821), (127, 171568), (254, 85784), (508, 42892), (1016, 21446), (2032, 10723)]