21969738

素因数分解:

$2^1\times 3^3\times 7^2\times {\mathrm{19}}^2\times {\mathrm{23}}^1$

素因数の和:86

約数の個数: 144

約数和(自身を含む): 62544960

約数和(自身を除く): 40575222

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 19, 21, 23, 27, 38, 42, 46, 49, 54, 57, 63, 69, 98, 114, 126, 133, 138, 147, 161, 171, 189, 207, 266, 294, 322, 342, 361, 378, 399, 414, 437, 441, 483, 513, 621, 722, 798, 874, 882, 931, 966, 1026, 1083, 1127, 1197, 1242, 1311, 1323, 1449, 1862, 2166, 2254, 2394, 2527, 2622, 2646, 2793, 2898, 3059, 3249, 3381, 3591, 3933, 4347, 5054, 5586, 6118, 6498, 6762, 7182, 7581, 7866, 8303, 8379, 8694, 9177, 9747, 10143, 11799, 15162, 16606, 16758, 17689, 18354, 19494, 20286, 21413, 22743, 23598, 24909, 25137, 27531, 30429, 35378, 42826, 45486, 49818, 50274, 53067, 55062, 58121, 60858, 64239, 68229, 74727, 82593, 106134, 116242, 128478, 136458, 149454, 159201, 165186, 174363, 192717, 224181, 318402, 348726, 385434, 406847, 448362, 477603, 523089, 578151, 813694, 955206, 1046178, 1156302, 1220541, 1569267, 2441082, 3138534, 3661623, 7323246, 10984869, 21969738]

約数ペア:

[(1, 21969738), (2, 10984869), (3, 7323246), (6, 3661623), (7, 3138534), (9, 2441082), (14, 1569267), (18, 1220541), (19, 1156302), (21, 1046178), (23, 955206), (27, 813694), (38, 578151), (42, 523089), (46, 477603), (49, 448362), (54, 406847), (57, 385434), (63, 348726), (69, 318402), (98, 224181), (114, 192717), (126, 174363), (133, 165186), (138, 159201), (147, 149454), (161, 136458), (171, 128478), (189, 116242), (207, 106134), (266, 82593), (294, 74727), (322, 68229), (342, 64239), (361, 60858), (378, 58121), (399, 55062), (414, 53067), (437, 50274), (441, 49818), (483, 45486), (513, 42826), (621, 35378), (722, 30429), (798, 27531), (874, 25137), (882, 24909), (931, 23598), (966, 22743), (1026, 21413), (1083, 20286), (1127, 19494), (1197, 18354), (1242, 17689), (1311, 16758), (1323, 16606), (1449, 15162), (1862, 11799), (2166, 10143), (2254, 9747), (2394, 9177), (2527, 8694), (2622, 8379), (2646, 8303), (2793, 7866), (2898, 7581), (3059, 7182), (3249, 6762), (3381, 6498), (3591, 6118), (3933, 5586), (4347, 5054)]