19928601

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:366

約数の個数: 48

約数和(自身を含む): 36316800

約数和(自身を除く): 16388199

約数列:

[1, 3, 7, 9, 11, 21, 33, 63, 77, 99, 149, 193, 231, 447, 579, 693, 1043, 1341, 1351, 1639, 1737, 2123, 3129, 4053, 4917, 6369, 9387, 11473, 12159, 14751, 14861, 19107, 28757, 34419, 44583, 86271, 103257, 133749, 201299, 258813, 316327, 603897, 948981, 1811691, 2214289, 2846943, 6642867, 19928601]

約数ペア:

[(1, 19928601), (3, 6642867), (7, 2846943), (9, 2214289), (11, 1811691), (21, 948981), (33, 603897), (63, 316327), (77, 258813), (99, 201299), (149, 133749), (193, 103257), (231, 86271), (447, 44583), (579, 34419), (693, 28757), (1043, 19107), (1341, 14861), (1351, 14751), (1639, 12159), (1737, 11473), (2123, 9387), (3129, 6369), (4053, 4917)]