19966023

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{613}}^1$

素因数の和:684

約数の個数: 48

約数和(自身を含む): 36781056

約数和(自身を除く): 16815033

約数列:

[1, 3, 7, 9, 11, 21, 33, 47, 63, 77, 99, 141, 231, 329, 423, 517, 613, 693, 987, 1551, 1839, 2961, 3619, 4291, 4653, 5517, 6743, 10857, 12873, 20229, 28811, 32571, 38619, 47201, 60687, 86433, 141603, 201677, 259299, 316921, 424809, 605031, 950763, 1815093, 2218447, 2852289, 6655341, 19966023]

約数ペア:

[(1, 19966023), (3, 6655341), (7, 2852289), (9, 2218447), (11, 1815093), (21, 950763), (33, 605031), (47, 424809), (63, 316921), (77, 259299), (99, 201677), (141, 141603), (231, 86433), (329, 60687), (423, 47201), (517, 38619), (613, 32571), (693, 28811), (987, 20229), (1551, 12873), (1839, 10857), (2961, 6743), (3619, 5517), (4291, 4653)]