81492957

素因数分解:

$3^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{5237}}^1$

素因数の和:5282

約数の個数: 48

約数和(自身を含む): 152530560

約数和(自身を除く): 71037603

約数列:

[1, 3, 7, 9, 13, 19, 21, 39, 57, 63, 91, 117, 133, 171, 247, 273, 399, 741, 819, 1197, 1729, 2223, 5187, 5237, 15561, 15711, 36659, 47133, 68081, 99503, 109977, 204243, 298509, 329931, 476567, 612729, 696521, 895527, 1293539, 1429701, 2089563, 3880617, 4289103, 6268689, 9054773, 11641851, 27164319, 81492957]

約数ペア:

[(1, 81492957), (3, 27164319), (7, 11641851), (9, 9054773), (13, 6268689), (19, 4289103), (21, 3880617), (39, 2089563), (57, 1429701), (63, 1293539), (91, 895527), (117, 696521), (133, 612729), (171, 476567), (247, 329931), (273, 298509), (399, 204243), (741, 109977), (819, 99503), (1197, 68081), (1729, 47133), (2223, 36659), (5187, 15711), (5237, 15561)]