27890499

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^2\times {\mathrm{283}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 48475392

約数和(自身を除く): 20584893

約数列:

[1, 3, 7, 13, 19, 21, 39, 57, 91, 133, 247, 273, 283, 361, 399, 741, 849, 1083, 1729, 1981, 2527, 3679, 4693, 5187, 5377, 5943, 7581, 11037, 14079, 16131, 25753, 32851, 37639, 69901, 77259, 98553, 102163, 112917, 209703, 306489, 489307, 715141, 1328119, 1467921, 2145423, 3984357, 9296833, 27890499]

約数ペア:

[(1, 27890499), (3, 9296833), (7, 3984357), (13, 2145423), (19, 1467921), (21, 1328119), (39, 715141), (57, 489307), (91, 306489), (133, 209703), (247, 112917), (273, 102163), (283, 98553), (361, 77259), (399, 69901), (741, 37639), (849, 32851), (1083, 25753), (1729, 16131), (1981, 14079), (2527, 11037), (3679, 7581), (4693, 5943), (5187, 5377)]