21708784

素因数分解:

$2^4\times {\mathrm{367}}^1\times {\mathrm{3697}}^1$

素因数の和:4072

約数の個数: 20

約数和(自身を含む): 42186784

約数和(自身を除く): 20478000

約数列:

[1, 2, 4, 8, 16, 367, 734, 1468, 2936, 3697, 5872, 7394, 14788, 29576, 59152, 1356799, 2713598, 5427196, 10854392, 21708784]

約数ペア:

[(1, 21708784), (2, 10854392), (4, 5427196), (8, 2713598), (16, 1356799), (367, 59152), (734, 29576), (1468, 14788), (2936, 7394), (3697, 5872)]