19890928

素因数分解:

$2^4\times {\mathrm{151}}^1\times {\mathrm{8233}}^1$

素因数の和:8392

約数の個数: 20

約数和(自身を含む): 38798608

約数和(自身を除く): 18907680

約数列:

[1, 2, 4, 8, 16, 151, 302, 604, 1208, 2416, 8233, 16466, 32932, 65864, 131728, 1243183, 2486366, 4972732, 9945464, 19890928]

約数ペア:

[(1, 19890928), (2, 9945464), (4, 4972732), (8, 2486366), (16, 1243183), (151, 131728), (302, 65864), (604, 32932), (1208, 16466), (2416, 8233)]