21831520

素因数分解:

$2^5\times 5^1\times {\mathrm{136447}}^1$

素因数の和:136462

約数の個数: 24

約数和(自身を含む): 51577344

約数和(自身を除く): 29745824

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 80, 160, 136447, 272894, 545788, 682235, 1091576, 1364470, 2183152, 2728940, 4366304, 5457880, 10915760, 21831520]

約数ペア:

[(1, 21831520), (2, 10915760), (4, 5457880), (5, 4366304), (8, 2728940), (10, 2183152), (16, 1364470), (20, 1091576), (32, 682235), (40, 545788), (80, 272894), (160, 136447)]