16578639

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{509}}^1$

素因数の和:580

約数の個数: 48

約数和(自身を含む): 30551040

約数和(自身を除く): 13972401

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 99, 141, 231, 329, 423, 509, 517, 693, 987, 1527, 1551, 2961, 3563, 3619, 4581, 4653, 5599, 10689, 10857, 16797, 23923, 32067, 32571, 39193, 50391, 71769, 117579, 167461, 215307, 263153, 352737, 502383, 789459, 1507149, 1842071, 2368377, 5526213, 16578639]

約数ペア:

[(1, 16578639), (3, 5526213), (7, 2368377), (9, 1842071), (11, 1507149), (21, 789459), (33, 502383), (47, 352737), (63, 263153), (77, 215307), (99, 167461), (141, 117579), (231, 71769), (329, 50391), (423, 39193), (509, 32571), (517, 32067), (693, 23923), (987, 16797), (1527, 10857), (1551, 10689), (2961, 5599), (3563, 4653), (3619, 4581)]