21539272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{109}}^1\times {\mathrm{1453}}^1$

素因数の和:1585

約数の個数: 32

約数和(自身を含む): 43183800

約数和(自身を除く): 21644528

約数列:

[1, 2, 4, 8, 17, 34, 68, 109, 136, 218, 436, 872, 1453, 1853, 2906, 3706, 5812, 7412, 11624, 14824, 24701, 49402, 98804, 158377, 197608, 316754, 633508, 1267016, 2692409, 5384818, 10769636, 21539272]

約数ペア:

[(1, 21539272), (2, 10769636), (4, 5384818), (8, 2692409), (17, 1267016), (34, 633508), (68, 316754), (109, 197608), (136, 158377), (218, 98804), (436, 49402), (872, 24701), (1453, 14824), (1853, 11624), (2906, 7412), (3706, 5812)]