20887965

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9473}}^1$

素因数の和:9498

約数の個数: 36

約数和(自身を含む): 42121404

約数和(自身を除く): 21233439

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9473, 28419, 47365, 66311, 85257, 142095, 198933, 331555, 426285, 464177, 596799, 994665, 1392531, 2320885, 2983995, 4177593, 6962655, 20887965]

約数ペア:

[(1, 20887965), (3, 6962655), (5, 4177593), (7, 2983995), (9, 2320885), (15, 1392531), (21, 994665), (35, 596799), (45, 464177), (49, 426285), (63, 331555), (105, 198933), (147, 142095), (245, 85257), (315, 66311), (441, 47365), (735, 28419), (2205, 9473)]