20215932009

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{127}}^1\times {\mathrm{2687}}^1$

素因数の和:2875

約数の個数: 96

約数和(自身を含む): 35144073216

約数和(自身を除く): 14928141207

約数列:

[1, 3, 7, 13, 21, 31, 39, 49, 91, 93, 127, 147, 217, 273, 381, 403, 637, 651, 889, 1209, 1519, 1651, 1911, 2667, 2687, 2821, 3937, 4557, 4953, 6223, 8061, 8463, 11557, 11811, 18669, 18809, 19747, 27559, 34671, 34931, 51181, 56427, 59241, 80899, 82677, 83297, 104793, 131663, 153543, 192913, 242697, 244517, 249891, 341249, 358267, 394989, 578739, 583079, 733551, 1023747, 1074801, 1082861, 1711619, 1749237, 2388743, 2507869, 3248583, 4081553, 4436237, 5134857, 7166229, 7523607, 7580027, 10578719, 12244659, 13308711, 16721201, 22740081, 31053659, 31736157, 50163603, 53060189, 74051033, 93160977, 137523347, 159180567, 217375613, 222153099, 412570041, 518357231, 652126839, 962663429, 1555071693, 2887990287, 6738644003, 20215932009]

約数ペア:

[(1, 20215932009), (3, 6738644003), (7, 2887990287), (13, 1555071693), (21, 962663429), (31, 652126839), (39, 518357231), (49, 412570041), (91, 222153099), (93, 217375613), (127, 159180567), (147, 137523347), (217, 93160977), (273, 74051033), (381, 53060189), (403, 50163603), (637, 31736157), (651, 31053659), (889, 22740081), (1209, 16721201), (1519, 13308711), (1651, 12244659), (1911, 10578719), (2667, 7580027), (2687, 7523607), (2821, 7166229), (3937, 5134857), (4557, 4436237), (4953, 4081553), (6223, 3248583), (8061, 2507869), (8463, 2388743), (11557, 1749237), (11811, 1711619), (18669, 1082861), (18809, 1074801), (19747, 1023747), (27559, 733551), (34671, 583079), (34931, 578739), (51181, 394989), (56427, 358267), (59241, 341249), (80899, 249891), (82677, 244517), (83297, 242697), (104793, 192913), (131663, 153543)]