28404765

素因数分解:

$3^2\times 5^1\times {\mathrm{331}}^1\times {\mathrm{1907}}^1$

素因数の和:2249

約数の個数: 24

約数和(自身を含む): 49409568

約数和(自身を除く): 21004803

約数列:

[1, 3, 5, 9, 15, 45, 331, 993, 1655, 1907, 2979, 4965, 5721, 9535, 14895, 17163, 28605, 85815, 631217, 1893651, 3156085, 5680953, 9468255, 28404765]

約数ペア:

[(1, 28404765), (3, 9468255), (5, 5680953), (9, 3156085), (15, 1893651), (45, 631217), (331, 85815), (993, 28605), (1655, 17163), (1907, 14895), (2979, 9535), (4965, 5721)]