20199785823

素因数分解:

$3^2\times 7^2\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{25981}}^1$

素因数の和:26085

約数の個数: 72

約数和(自身を含む): 35578919376

約数和(自身を除く): 15379133553

約数列:

[1, 3, 7, 9, 21, 41, 43, 49, 63, 123, 129, 147, 287, 301, 369, 387, 441, 861, 903, 1763, 2009, 2107, 2583, 2709, 5289, 6027, 6321, 12341, 15867, 18081, 18963, 25981, 37023, 77943, 86387, 111069, 181867, 233829, 259161, 545601, 777483, 1065221, 1117183, 1273069, 1636803, 3195663, 3351549, 3819207, 7456547, 7820281, 9586989, 10054647, 11457621, 22369641, 23460843, 45804503, 52195829, 54741967, 67108923, 70382529, 137413509, 156587487, 164225901, 320631521, 412240527, 469762461, 492677703, 961894563, 2244420647, 2885683689, 6733261941, 20199785823]

約数ペア:

[(1, 20199785823), (3, 6733261941), (7, 2885683689), (9, 2244420647), (21, 961894563), (41, 492677703), (43, 469762461), (49, 412240527), (63, 320631521), (123, 164225901), (129, 156587487), (147, 137413509), (287, 70382529), (301, 67108923), (369, 54741967), (387, 52195829), (441, 45804503), (861, 23460843), (903, 22369641), (1763, 11457621), (2009, 10054647), (2107, 9586989), (2583, 7820281), (2709, 7456547), (5289, 3819207), (6027, 3351549), (6321, 3195663), (12341, 1636803), (15867, 1273069), (18081, 1117183), (18963, 1065221), (25981, 777483), (37023, 545601), (77943, 259161), (86387, 233829), (111069, 181867)]