18819990

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{29873}}^1$

素因数の和:29893

約数の個数: 48

約数和(自身を含む): 55924128

約数和(自身を除く): 37104138

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 29873, 59746, 89619, 149365, 179238, 209111, 268857, 298730, 418222, 448095, 537714, 627333, 896190, 1045555, 1254666, 1344285, 1881999, 2091110, 2688570, 3136665, 3763998, 6273330, 9409995, 18819990]

約数ペア:

[(1, 18819990), (2, 9409995), (3, 6273330), (5, 3763998), (6, 3136665), (7, 2688570), (9, 2091110), (10, 1881999), (14, 1344285), (15, 1254666), (18, 1045555), (21, 896190), (30, 627333), (35, 537714), (42, 448095), (45, 418222), (63, 298730), (70, 268857), (90, 209111), (105, 179238), (126, 149365), (210, 89619), (315, 59746), (630, 29873)]