289135217

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{457}}^1$

素因数の和:621

約数の個数: 32

約数和(自身を含む): 358778880

約数和(自身を除く): 69643663

約数列:

[1, 7, 19, 67, 71, 133, 457, 469, 497, 1273, 1349, 3199, 4757, 8683, 8911, 9443, 30619, 32447, 33299, 60781, 90383, 214333, 227129, 581761, 616493, 632681, 2173949, 4072327, 4315451, 15217643, 41305031, 289135217]

約数ペア:

[(1, 289135217), (7, 41305031), (19, 15217643), (67, 4315451), (71, 4072327), (133, 2173949), (457, 632681), (469, 616493), (497, 581761), (1273, 227129), (1349, 214333), (3199, 90383), (4757, 60781), (8683, 33299), (8911, 32447), (9443, 30619)]