217901908

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{4283}}^1$

素因数の和:4396

約数の個数: 48

約数和(自身を含む): 460615680

約数和(自身を除く): 242713772

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 79, 92, 158, 161, 316, 322, 553, 644, 1106, 1817, 2212, 3634, 4283, 7268, 8566, 12719, 17132, 25438, 29981, 50876, 59962, 98509, 119924, 197018, 338357, 394036, 676714, 689563, 1353428, 1379126, 2368499, 2758252, 4736998, 7782211, 9473996, 15564422, 31128844, 54475477, 108950954, 217901908]

約数ペア:

[(1, 217901908), (2, 108950954), (4, 54475477), (7, 31128844), (14, 15564422), (23, 9473996), (28, 7782211), (46, 4736998), (79, 2758252), (92, 2368499), (158, 1379126), (161, 1353428), (316, 689563), (322, 676714), (553, 394036), (644, 338357), (1106, 197018), (1817, 119924), (2212, 98509), (3634, 59962), (4283, 50876), (7268, 29981), (8566, 25438), (12719, 17132)]