21078392

素因数分解:

$2^3\times {\mathrm{151}}^1\times {\mathrm{17449}}^1$

素因数の和:17606

約数の個数: 16

約数和(自身を含む): 39786000

約数和(自身を除く): 18707608

約数列:

[1, 2, 4, 8, 151, 302, 604, 1208, 17449, 34898, 69796, 139592, 2634799, 5269598, 10539196, 21078392]

約数ペア:

[(1, 21078392), (2, 10539196), (4, 5269598), (8, 2634799), (151, 139592), (302, 69796), (604, 34898), (1208, 17449)]