28785309

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{17351}}^1$

素因数の和:17440

約数の個数: 16

約数和(自身を含む): 44421120

約数和(自身を除く): 15635811

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 17351, 52053, 121457, 364371, 1370729, 4112187, 9595103, 28785309]

約数ペア:

[(1, 28785309), (3, 9595103), (7, 4112187), (21, 1370729), (79, 364371), (237, 121457), (553, 52053), (1659, 17351)]