201990957

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{97}}^1\times {\mathrm{307}}^1$

素因数の和:450

約数の個数: 64

約数和(自身を含む): 347719680

約数和(自身を除く): 145728723

約数列:

[1, 3, 7, 17, 19, 21, 51, 57, 97, 119, 133, 291, 307, 323, 357, 399, 679, 921, 969, 1649, 1843, 2037, 2149, 2261, 4947, 5219, 5529, 5833, 6447, 6783, 11543, 12901, 15657, 17499, 29779, 31331, 34629, 36533, 38703, 40831, 89337, 93993, 99161, 109599, 122493, 208453, 219317, 297483, 506243, 565801, 625359, 657951, 694127, 1518729, 1697403, 2082381, 3543701, 3960607, 9618617, 10631103, 11881821, 28855851, 67330319, 201990957]

約数ペア:

[(1, 201990957), (3, 67330319), (7, 28855851), (17, 11881821), (19, 10631103), (21, 9618617), (51, 3960607), (57, 3543701), (97, 2082381), (119, 1697403), (133, 1518729), (291, 694127), (307, 657951), (323, 625359), (357, 565801), (399, 506243), (679, 297483), (921, 219317), (969, 208453), (1649, 122493), (1843, 109599), (2037, 99161), (2149, 93993), (2261, 89337), (4947, 40831), (5219, 38703), (5529, 36533), (5833, 34629), (6447, 31331), (6783, 29779), (11543, 17499), (12901, 15657)]