208505193981

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{2339}}^1\times {\mathrm{2441}}^1$

素因数の和:4874

約数の個数: 64

約数和(自身を含む): 333531095040

約数和(自身を除く): 125025901059

約数列:

[1, 3, 7, 21, 37, 47, 111, 141, 259, 329, 777, 987, 1739, 2339, 2441, 5217, 7017, 7323, 12173, 16373, 17087, 36519, 49119, 51261, 86543, 90317, 109933, 114727, 259629, 270951, 329799, 344181, 605801, 632219, 769531, 803089, 1817403, 1896657, 2308593, 2409267, 4067521, 4244899, 5709499, 12202563, 12734697, 17128497, 28472647, 29714293, 39966493, 85417941, 89142879, 119899479, 211251463, 268346453, 633754389, 805039359, 1478760241, 1878425171, 4436280723, 5635275513, 9928818761, 29786456283, 69501731327, 208505193981]

約数ペア:

[(1, 208505193981), (3, 69501731327), (7, 29786456283), (21, 9928818761), (37, 5635275513), (47, 4436280723), (111, 1878425171), (141, 1478760241), (259, 805039359), (329, 633754389), (777, 268346453), (987, 211251463), (1739, 119899479), (2339, 89142879), (2441, 85417941), (5217, 39966493), (7017, 29714293), (7323, 28472647), (12173, 17128497), (16373, 12734697), (17087, 12202563), (36519, 5709499), (49119, 4244899), (51261, 4067521), (86543, 2409267), (90317, 2308593), (109933, 1896657), (114727, 1817403), (259629, 803089), (270951, 769531), (329799, 632219), (344181, 605801)]