21886384

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{139}}^1\times {\mathrm{757}}^1$

素因数の和:917

約数の個数: 40

約数和(自身を含む): 46056080

約数和(自身を除く): 24169696

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 139, 208, 278, 556, 757, 1112, 1514, 1807, 2224, 3028, 3614, 6056, 7228, 9841, 12112, 14456, 19682, 28912, 39364, 78728, 105223, 157456, 210446, 420892, 841784, 1367899, 1683568, 2735798, 5471596, 10943192, 21886384]

約数ペア:

[(1, 21886384), (2, 10943192), (4, 5471596), (8, 2735798), (13, 1683568), (16, 1367899), (26, 841784), (52, 420892), (104, 210446), (139, 157456), (208, 105223), (278, 78728), (556, 39364), (757, 28912), (1112, 19682), (1514, 14456), (1807, 12112), (2224, 9841), (3028, 7228), (3614, 6056)]