31141143

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{139}}^1$

素因数の和:260

約数の個数: 48

約数和(自身を含む): 51717120

約数和(自身を除く): 20575977

約数列:

[1, 3, 9, 11, 31, 33, 73, 93, 99, 139, 219, 279, 341, 417, 657, 803, 1023, 1251, 1529, 2263, 2409, 3069, 4309, 4587, 6789, 7227, 10147, 12927, 13761, 20367, 24893, 30441, 38781, 47399, 74679, 91323, 111617, 142197, 224037, 314557, 334851, 426591, 943671, 1004553, 2831013, 3460127, 10380381, 31141143]

約数ペア:

[(1, 31141143), (3, 10380381), (9, 3460127), (11, 2831013), (31, 1004553), (33, 943671), (73, 426591), (93, 334851), (99, 314557), (139, 224037), (219, 142197), (279, 111617), (341, 91323), (417, 74679), (657, 47399), (803, 38781), (1023, 30441), (1251, 24893), (1529, 20367), (2263, 13761), (2409, 12927), (3069, 10147), (4309, 7227), (4587, 6789)]