21949330

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{1549}}^1$

素因数の和:1678

約数の個数: 32

約数和(自身を含む): 42966000

約数和(自身を除く): 21016670

約数列:

[1, 2, 5, 10, 13, 26, 65, 109, 130, 218, 545, 1090, 1417, 1549, 2834, 3098, 7085, 7745, 14170, 15490, 20137, 40274, 100685, 168841, 201370, 337682, 844205, 1688410, 2194933, 4389866, 10974665, 21949330]

約数ペア:

[(1, 21949330), (2, 10974665), (5, 4389866), (10, 2194933), (13, 1688410), (26, 844205), (65, 337682), (109, 201370), (130, 168841), (218, 100685), (545, 40274), (1090, 20137), (1417, 15490), (1549, 14170), (2834, 7745), (3098, 7085)]