20405528

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17837}}^1$

素因数の和:17867

約数の個数: 32

約数和(自身を含む): 44951760

約数和(自身を除く): 24546232

約数列:

[1, 2, 4, 8, 11, 13, 22, 26, 44, 52, 88, 104, 143, 286, 572, 1144, 17837, 35674, 71348, 142696, 196207, 231881, 392414, 463762, 784828, 927524, 1569656, 1855048, 2550691, 5101382, 10202764, 20405528]

約数ペア:

[(1, 20405528), (2, 10202764), (4, 5101382), (8, 2550691), (11, 1855048), (13, 1569656), (22, 927524), (26, 784828), (44, 463762), (52, 392414), (88, 231881), (104, 196207), (143, 142696), (286, 71348), (572, 35674), (1144, 17837)]