19994282

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^3\times {\mathrm{29}}^1\times {\mathrm{37}}^1$

素因数の和:108

約数の個数: 64

約数和(自身を含む): 40055040

約数和(自身を除く): 20060758

約数列:

[1, 2, 7, 11, 14, 22, 29, 37, 58, 74, 77, 121, 154, 203, 242, 259, 319, 406, 407, 518, 638, 814, 847, 1073, 1331, 1694, 2146, 2233, 2662, 2849, 3509, 4466, 4477, 5698, 7018, 7511, 8954, 9317, 11803, 15022, 18634, 23606, 24563, 31339, 38599, 49126, 49247, 62678, 77198, 82621, 98494, 129833, 165242, 259666, 270193, 344729, 540386, 689458, 908831, 1428163, 1817662, 2856326, 9997141, 19994282]

約数ペア:

[(1, 19994282), (2, 9997141), (7, 2856326), (11, 1817662), (14, 1428163), (22, 908831), (29, 689458), (37, 540386), (58, 344729), (74, 270193), (77, 259666), (121, 165242), (154, 129833), (203, 98494), (242, 82621), (259, 77198), (319, 62678), (406, 49247), (407, 49126), (518, 38599), (638, 31339), (814, 24563), (847, 23606), (1073, 18634), (1331, 15022), (1694, 11803), (2146, 9317), (2233, 8954), (2662, 7511), (2849, 7018), (3509, 5698), (4466, 4477)]