19701396

素因数分解:

$2^2\times 3^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1$

素因数の和:166

約数の個数: 144

約数和(自身を含む): 60540480

約数和(自身を除く): 40839084

約数列:

[1, 2, 3, 4, 6, 9, 11, 12, 13, 18, 22, 26, 33, 36, 39, 43, 44, 52, 66, 78, 86, 89, 99, 117, 129, 132, 143, 156, 172, 178, 198, 234, 258, 267, 286, 356, 387, 396, 429, 468, 473, 516, 534, 559, 572, 774, 801, 858, 946, 979, 1068, 1118, 1157, 1287, 1419, 1548, 1602, 1677, 1716, 1892, 1958, 2236, 2314, 2574, 2838, 2937, 3204, 3354, 3471, 3827, 3916, 4257, 4628, 5031, 5148, 5676, 5874, 6149, 6708, 6942, 7654, 8514, 8811, 10062, 10413, 11481, 11748, 12298, 12727, 13884, 15308, 17028, 17622, 18447, 20124, 20826, 22962, 24596, 25454, 34443, 35244, 36894, 38181, 41652, 42097, 45924, 49751, 50908, 55341, 68886, 73788, 76362, 84194, 99502, 110682, 114543, 126291, 137772, 149253, 152724, 168388, 199004, 221364, 229086, 252582, 298506, 378873, 447759, 458172, 505164, 547261, 597012, 757746, 895518, 1094522, 1515492, 1641783, 1791036, 2189044, 3283566, 4925349, 6567132, 9850698, 19701396]

約数ペア:

[(1, 19701396), (2, 9850698), (3, 6567132), (4, 4925349), (6, 3283566), (9, 2189044), (11, 1791036), (12, 1641783), (13, 1515492), (18, 1094522), (22, 895518), (26, 757746), (33, 597012), (36, 547261), (39, 505164), (43, 458172), (44, 447759), (52, 378873), (66, 298506), (78, 252582), (86, 229086), (89, 221364), (99, 199004), (117, 168388), (129, 152724), (132, 149253), (143, 137772), (156, 126291), (172, 114543), (178, 110682), (198, 99502), (234, 84194), (258, 76362), (267, 73788), (286, 68886), (356, 55341), (387, 50908), (396, 49751), (429, 45924), (468, 42097), (473, 41652), (516, 38181), (534, 36894), (559, 35244), (572, 34443), (774, 25454), (801, 24596), (858, 22962), (946, 20826), (979, 20124), (1068, 18447), (1118, 17622), (1157, 17028), (1287, 15308), (1419, 13884), (1548, 12727), (1602, 12298), (1677, 11748), (1716, 11481), (1892, 10413), (1958, 10062), (2236, 8811), (2314, 8514), (2574, 7654), (2838, 6942), (2937, 6708), (3204, 6149), (3354, 5874), (3471, 5676), (3827, 5148), (3916, 5031), (4257, 4628)]