20210785105

素因数分解:

$5^1\times 7^1\times {\mathrm{83}}^1\times {\mathrm{877}}^1\times {\mathrm{7933}}^1$

素因数の和:8905

約数の個数: 32

約数和(自身を含む): 28087121664

約数和(自身を除く): 7876336559

約数列:

[1, 5, 7, 35, 83, 415, 581, 877, 2905, 4385, 6139, 7933, 30695, 39665, 55531, 72791, 277655, 363955, 509537, 658439, 2547685, 3292195, 4609073, 6957241, 23045365, 34786205, 48700687, 243503435, 577451003, 2887255015, 4042157021, 20210785105]

約数ペア:

[(1, 20210785105), (5, 4042157021), (7, 2887255015), (35, 577451003), (83, 243503435), (415, 48700687), (581, 34786205), (877, 23045365), (2905, 6957241), (4385, 4609073), (6139, 3292195), (7933, 2547685), (30695, 658439), (39665, 509537), (55531, 363955), (72791, 277655)]