19708792

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{53}}^1$

素因数の和:172

約数の個数: 64

約数和(自身を含む): 41057280

約数和(自身を除く): 21348488

約数列:

[1, 2, 4, 8, 23, 43, 46, 47, 53, 86, 92, 94, 106, 172, 184, 188, 212, 344, 376, 424, 989, 1081, 1219, 1978, 2021, 2162, 2279, 2438, 2491, 3956, 4042, 4324, 4558, 4876, 4982, 7912, 8084, 8648, 9116, 9752, 9964, 16168, 18232, 19928, 46483, 52417, 57293, 92966, 104834, 107113, 114586, 185932, 209668, 214226, 229172, 371864, 419336, 428452, 458344, 856904, 2463599, 4927198, 9854396, 19708792]

約数ペア:

[(1, 19708792), (2, 9854396), (4, 4927198), (8, 2463599), (23, 856904), (43, 458344), (46, 428452), (47, 419336), (53, 371864), (86, 229172), (92, 214226), (94, 209668), (106, 185932), (172, 114586), (184, 107113), (188, 104834), (212, 92966), (344, 57293), (376, 52417), (424, 46483), (989, 19928), (1081, 18232), (1219, 16168), (1978, 9964), (2021, 9752), (2162, 9116), (2279, 8648), (2438, 8084), (2491, 7912), (3956, 4982), (4042, 4876), (4324, 4558)]