20669207

素因数分解:

${\mathrm{13}}^2\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{157}}^1$

素因数の和:243

約数の個数: 24

約数和(自身を含む): 24287760

約数和(自身を除く): 3618553

約数列:

[1, 13, 19, 41, 157, 169, 247, 533, 779, 2041, 2983, 3211, 6437, 6929, 10127, 26533, 38779, 83681, 122303, 131651, 504127, 1087853, 1589939, 20669207]

約数ペア:

[(1, 20669207), (13, 1589939), (19, 1087853), (41, 504127), (157, 131651), (169, 122303), (247, 83681), (533, 38779), (779, 26533), (2041, 10127), (2983, 6929), (3211, 6437)]