21886527

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{421}}^1$

素因数の和:511

約数の個数: 32

約数和(自身を含む): 33273856

約数和(自身を除く): 11387329

約数列:

[1, 3, 13, 31, 39, 43, 93, 129, 403, 421, 559, 1209, 1263, 1333, 1677, 3999, 5473, 13051, 16419, 17329, 18103, 39153, 51987, 54309, 169663, 235339, 508989, 561193, 706017, 1683579, 7295509, 21886527]

約数ペア:

[(1, 21886527), (3, 7295509), (13, 1683579), (31, 706017), (39, 561193), (43, 508989), (93, 235339), (129, 169663), (403, 54309), (421, 51987), (559, 39153), (1209, 18103), (1263, 17329), (1333, 16419), (1677, 13051), (3999, 5473)]