201821895

素因数分解:

$3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{311}}^1$

素因数の和:378

約数の個数: 128

約数和(自身を含む): 431308800

約数和(自身を除く): 229486905

約数列:

[1, 3, 5, 9, 11, 15, 19, 23, 27, 33, 45, 55, 57, 69, 95, 99, 115, 135, 165, 171, 207, 209, 253, 285, 297, 311, 345, 437, 495, 513, 621, 627, 759, 855, 933, 1035, 1045, 1265, 1311, 1485, 1555, 1881, 2185, 2277, 2565, 2799, 3105, 3135, 3421, 3795, 3933, 4665, 4807, 5643, 5909, 6555, 6831, 7153, 8397, 9405, 10263, 11385, 11799, 13995, 14421, 17105, 17727, 19665, 21459, 24035, 28215, 29545, 30789, 34155, 35765, 41985, 43263, 51315, 53181, 58995, 64377, 64999, 72105, 78683, 88635, 92367, 107295, 129789, 135907, 153945, 159543, 193131, 194997, 216315, 236049, 265905, 321885, 324995, 393415, 407721, 461835, 584991, 648945, 679535, 708147, 797715, 965655, 974985, 1180245, 1223163, 1494977, 1754973, 2038605, 2124441, 2924955, 3540735, 3669489, 4484931, 6115815, 7474885, 8774865, 10622205, 13454793, 18347445, 22424655, 40364379, 67273965, 201821895]

約数ペア:

[(1, 201821895), (3, 67273965), (5, 40364379), (9, 22424655), (11, 18347445), (15, 13454793), (19, 10622205), (23, 8774865), (27, 7474885), (33, 6115815), (45, 4484931), (55, 3669489), (57, 3540735), (69, 2924955), (95, 2124441), (99, 2038605), (115, 1754973), (135, 1494977), (165, 1223163), (171, 1180245), (207, 974985), (209, 965655), (253, 797715), (285, 708147), (297, 679535), (311, 648945), (345, 584991), (437, 461835), (495, 407721), (513, 393415), (621, 324995), (627, 321885), (759, 265905), (855, 236049), (933, 216315), (1035, 194997), (1045, 193131), (1265, 159543), (1311, 153945), (1485, 135907), (1555, 129789), (1881, 107295), (2185, 92367), (2277, 88635), (2565, 78683), (2799, 72105), (3105, 64999), (3135, 64377), (3421, 58995), (3795, 53181), (3933, 51315), (4665, 43263), (4807, 41985), (5643, 35765), (5909, 34155), (6555, 30789), (6831, 29545), (7153, 28215), (8397, 24035), (9405, 21459), (10263, 19665), (11385, 17727), (11799, 17105), (13995, 14421)]