31187673

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{71}}^1$

素因数の和:140

約数の個数: 80

約数和(自身を含む): 56453760

約数和(自身を除く): 25266087

約数列:

[1, 3, 9, 11, 17, 27, 29, 33, 51, 71, 81, 87, 99, 153, 187, 213, 261, 297, 319, 459, 493, 561, 639, 781, 783, 891, 957, 1207, 1377, 1479, 1683, 1917, 2059, 2343, 2349, 2871, 3621, 4437, 5049, 5423, 5751, 6177, 7029, 8613, 10863, 13277, 13311, 15147, 16269, 18531, 21087, 22649, 25839, 32589, 35003, 39831, 39933, 48807, 55593, 63261, 67947, 97767, 105009, 119493, 146421, 166779, 203841, 315027, 358479, 385033, 439263, 611523, 945081, 1075437, 1155099, 1834569, 2835243, 3465297, 10395891, 31187673]

約数ペア:

[(1, 31187673), (3, 10395891), (9, 3465297), (11, 2835243), (17, 1834569), (27, 1155099), (29, 1075437), (33, 945081), (51, 611523), (71, 439263), (81, 385033), (87, 358479), (99, 315027), (153, 203841), (187, 166779), (213, 146421), (261, 119493), (297, 105009), (319, 97767), (459, 67947), (493, 63261), (561, 55593), (639, 48807), (781, 39933), (783, 39831), (891, 35003), (957, 32589), (1207, 25839), (1377, 22649), (1479, 21087), (1683, 18531), (1917, 16269), (2059, 15147), (2343, 13311), (2349, 13277), (2871, 10863), (3621, 8613), (4437, 7029), (5049, 6177), (5423, 5751)]