19859994

素因数分解:

$2^1\times 3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:145

約数の個数: 144

約数和(自身を含む): 57620160

約数和(自身を除く): 37760166

約数列:

[1, 2, 3, 6, 7, 9, 11, 14, 18, 21, 22, 23, 33, 42, 46, 49, 63, 66, 69, 77, 89, 98, 99, 126, 138, 147, 154, 161, 178, 198, 207, 231, 253, 267, 294, 322, 414, 441, 462, 483, 506, 534, 539, 623, 693, 759, 801, 882, 966, 979, 1078, 1127, 1246, 1386, 1449, 1518, 1602, 1617, 1771, 1869, 1958, 2047, 2254, 2277, 2898, 2937, 3234, 3381, 3542, 3738, 4094, 4361, 4554, 4851, 5313, 5607, 5874, 6141, 6762, 6853, 8722, 8811, 9702, 10143, 10626, 11214, 12282, 12397, 13083, 13706, 14329, 15939, 17622, 18423, 20286, 20559, 22517, 24794, 26166, 28658, 31878, 36846, 37191, 39249, 41118, 42987, 45034, 47971, 61677, 67551, 74382, 78498, 85974, 95942, 100303, 111573, 123354, 128961, 135102, 143913, 157619, 200606, 202653, 223146, 257922, 287826, 300909, 315238, 405306, 431739, 472857, 601818, 863478, 902727, 945714, 1103333, 1418571, 1805454, 2206666, 2837142, 3309999, 6619998, 9929997, 19859994]

約数ペア:

[(1, 19859994), (2, 9929997), (3, 6619998), (6, 3309999), (7, 2837142), (9, 2206666), (11, 1805454), (14, 1418571), (18, 1103333), (21, 945714), (22, 902727), (23, 863478), (33, 601818), (42, 472857), (46, 431739), (49, 405306), (63, 315238), (66, 300909), (69, 287826), (77, 257922), (89, 223146), (98, 202653), (99, 200606), (126, 157619), (138, 143913), (147, 135102), (154, 128961), (161, 123354), (178, 111573), (198, 100303), (207, 95942), (231, 85974), (253, 78498), (267, 74382), (294, 67551), (322, 61677), (414, 47971), (441, 45034), (462, 42987), (483, 41118), (506, 39249), (534, 37191), (539, 36846), (623, 31878), (693, 28658), (759, 26166), (801, 24794), (882, 22517), (966, 20559), (979, 20286), (1078, 18423), (1127, 17622), (1246, 15939), (1386, 14329), (1449, 13706), (1518, 13083), (1602, 12397), (1617, 12282), (1771, 11214), (1869, 10626), (1958, 10143), (2047, 9702), (2254, 8811), (2277, 8722), (2898, 6853), (2937, 6762), (3234, 6141), (3381, 5874), (3542, 5607), (3738, 5313), (4094, 4851), (4361, 4554)]