81273906

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1997}}^1$

素因数の和:2048

約数の個数: 96

約数和(自身を含む): 224415360

約数和(自身を除く): 143141454

約数列:

[1, 2, 3, 6, 7, 9, 14, 17, 18, 19, 21, 34, 38, 42, 51, 57, 63, 102, 114, 119, 126, 133, 153, 171, 238, 266, 306, 323, 342, 357, 399, 646, 714, 798, 969, 1071, 1197, 1938, 1997, 2142, 2261, 2394, 2907, 3994, 4522, 5814, 5991, 6783, 11982, 13566, 13979, 17973, 20349, 27958, 33949, 35946, 37943, 40698, 41937, 67898, 75886, 83874, 101847, 113829, 125811, 203694, 227658, 237643, 251622, 265601, 305541, 341487, 475286, 531202, 611082, 645031, 682974, 712929, 796803, 1290062, 1425858, 1593606, 1935093, 2138787, 2390409, 3870186, 4277574, 4515217, 4780818, 5805279, 9030434, 11610558, 13545651, 27091302, 40636953, 81273906]

約数ペア:

[(1, 81273906), (2, 40636953), (3, 27091302), (6, 13545651), (7, 11610558), (9, 9030434), (14, 5805279), (17, 4780818), (18, 4515217), (19, 4277574), (21, 3870186), (34, 2390409), (38, 2138787), (42, 1935093), (51, 1593606), (57, 1425858), (63, 1290062), (102, 796803), (114, 712929), (119, 682974), (126, 645031), (133, 611082), (153, 531202), (171, 475286), (238, 341487), (266, 305541), (306, 265601), (323, 251622), (342, 237643), (357, 227658), (399, 203694), (646, 125811), (714, 113829), (798, 101847), (969, 83874), (1071, 75886), (1197, 67898), (1938, 41937), (1997, 40698), (2142, 37943), (2261, 35946), (2394, 33949), (2907, 27958), (3994, 20349), (4522, 17973), (5814, 13979), (5991, 13566), (6783, 11982)]