28657196

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{197}}^1\times {\mathrm{887}}^1$

素因数の和:1129

約数の個数: 24

約数和(自身を含む): 51692256

約数和(自身を除く): 23035060

約数列:

[1, 2, 4, 41, 82, 164, 197, 394, 788, 887, 1774, 3548, 8077, 16154, 32308, 36367, 72734, 145468, 174739, 349478, 698956, 7164299, 14328598, 28657196]

約数ペア:

[(1, 28657196), (2, 14328598), (4, 7164299), (41, 698956), (82, 349478), (164, 174739), (197, 145468), (394, 72734), (788, 36367), (887, 32308), (1774, 16154), (3548, 8077)]