20784533

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{53}}^1\times {\mathrm{463}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 26659584

約数和(自身を除く): 5875051

約数列:

[1, 7, 11, 53, 77, 121, 371, 463, 583, 847, 3241, 4081, 5093, 6413, 24539, 35651, 44891, 56023, 171773, 269929, 392161, 1889503, 2969219, 20784533]

約数ペア:

[(1, 20784533), (7, 2969219), (11, 1889503), (53, 392161), (77, 269929), (121, 171773), (371, 56023), (463, 44891), (583, 35651), (847, 24539), (3241, 6413), (4081, 5093)]