74861787

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{257}}^1$

素因数の和:388

約数の個数: 64

約数和(自身を含む): 135926784

約数和(自身を除く): 61064997

約数列:

[1, 3, 7, 11, 13, 21, 33, 39, 77, 91, 97, 143, 231, 257, 273, 291, 429, 679, 771, 1001, 1067, 1261, 1799, 2037, 2827, 3003, 3201, 3341, 3783, 5397, 7469, 8481, 8827, 10023, 13871, 19789, 22407, 23387, 24929, 26481, 36751, 41613, 59367, 70161, 74787, 97097, 110253, 174503, 257257, 274219, 291291, 324077, 523509, 771771, 822657, 972231, 1919533, 2268539, 3564847, 5758599, 6805617, 10694541, 24953929, 74861787]

約数ペア:

[(1, 74861787), (3, 24953929), (7, 10694541), (11, 6805617), (13, 5758599), (21, 3564847), (33, 2268539), (39, 1919533), (77, 972231), (91, 822657), (97, 771771), (143, 523509), (231, 324077), (257, 291291), (273, 274219), (291, 257257), (429, 174503), (679, 110253), (771, 97097), (1001, 74787), (1067, 70161), (1261, 59367), (1799, 41613), (2037, 36751), (2827, 26481), (3003, 24929), (3201, 23387), (3341, 22407), (3783, 19789), (5397, 13871), (7469, 10023), (8481, 8827)]