19982718

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{491}}^1$

素因数の和:542

約数の個数: 96

約数和(自身を含む): 55261440

約数和(自身を除く): 35278722

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, 491, 646, 714, 798, 969, 982, 1071, 1197, 1473, 1938, 2142, 2261, 2394, 2907, 2946, 3437, 4419, 4522, 5814, 6783, 6874, 8347, 8838, 9329, 10311, 13566, 16694, 18658, 20349, 20622, 25041, 27987, 30933, 40698, 50082, 55974, 58429, 61866, 65303, 75123, 83961, 116858, 130606, 150246, 158593, 167922, 175287, 195909, 317186, 350574, 391818, 475779, 525861, 587727, 951558, 1051722, 1110151, 1175454, 1427337, 2220302, 2854674, 3330453, 6660906, 9991359, 19982718]

約数ペア:

[(1, 19982718), (2, 9991359), (3, 6660906), (6, 3330453), (7, 2854674), (9, 2220302), (14, 1427337), (17, 1175454), (18, 1110151), (19, 1051722), (21, 951558), (34, 587727), (38, 525861), (42, 475779), (51, 391818), (57, 350574), (63, 317186), (102, 195909), (114, 175287), (119, 167922), (126, 158593), (133, 150246), (153, 130606), (171, 116858), (238, 83961), (266, 75123), (306, 65303), (323, 61866), (342, 58429), (357, 55974), (399, 50082), (491, 40698), (646, 30933), (714, 27987), (798, 25041), (969, 20622), (982, 20349), (1071, 18658), (1197, 16694), (1473, 13566), (1938, 10311), (2142, 9329), (2261, 8838), (2394, 8347), (2907, 6874), (2946, 6783), (3437, 5814), (4419, 4522)]