17991904

素因数分解:

$2^5\times 7^1\times {\mathrm{31}}^1\times {\mathrm{2591}}^1$

素因数の和:2639

約数の個数: 48

約数和(自身を含む): 41803776

約数和(自身を除く): 23811872

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 31, 32, 56, 62, 112, 124, 217, 224, 248, 434, 496, 868, 992, 1736, 2591, 3472, 5182, 6944, 10364, 18137, 20728, 36274, 41456, 72548, 80321, 82912, 145096, 160642, 290192, 321284, 562247, 580384, 642568, 1124494, 1285136, 2248988, 2570272, 4497976, 8995952, 17991904]

約数ペア:

[(1, 17991904), (2, 8995952), (4, 4497976), (7, 2570272), (8, 2248988), (14, 1285136), (16, 1124494), (28, 642568), (31, 580384), (32, 562247), (56, 321284), (62, 290192), (112, 160642), (124, 145096), (217, 82912), (224, 80321), (248, 72548), (434, 41456), (496, 36274), (868, 20728), (992, 18137), (1736, 10364), (2591, 6944), (3472, 5182)]