20899186

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19387}}^1$

素因数の和:19414

約数の個数: 24

約数和(自身を含む): 39784176

約数和(自身を除く): 18884990

約数列:

[1, 2, 7, 11, 14, 22, 49, 77, 98, 154, 539, 1078, 19387, 38774, 135709, 213257, 271418, 426514, 949963, 1492799, 1899926, 2985598, 10449593, 20899186]

約数ペア:

[(1, 20899186), (2, 10449593), (7, 2985598), (11, 1899926), (14, 1492799), (22, 949963), (49, 426514), (77, 271418), (98, 213257), (154, 135709), (539, 38774), (1078, 19387)]