28315791

素因数分解:

$3^3\times 7^1\times {\mathrm{233}}^1\times {\mathrm{643}}^1$

素因数の和:892

約数の個数: 32

約数和(自身を含む): 48222720

約数和(自身を除く): 19906929

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 233, 643, 699, 1631, 1929, 2097, 4501, 4893, 5787, 6291, 13503, 14679, 17361, 40509, 44037, 121527, 149819, 449457, 1048733, 1348371, 3146199, 4045113, 9438597, 28315791]

約数ペア:

[(1, 28315791), (3, 9438597), (7, 4045113), (9, 3146199), (21, 1348371), (27, 1048733), (63, 449457), (189, 149819), (233, 121527), (643, 44037), (699, 40509), (1631, 17361), (1929, 14679), (2097, 13503), (4501, 6291), (4893, 5787)]