20780214

素因数分解:

$2^1\times 3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{5437}}^1$

素因数の和:5469

約数の個数: 48

約数和(自身を含む): 52074288

約数和(自身を除く): 31294074

約数列:

[1, 2, 3, 6, 7, 13, 14, 21, 26, 39, 42, 49, 78, 91, 98, 147, 182, 273, 294, 546, 637, 1274, 1911, 3822, 5437, 10874, 16311, 32622, 38059, 70681, 76118, 114177, 141362, 212043, 228354, 266413, 424086, 494767, 532826, 799239, 989534, 1484301, 1598478, 2968602, 3463369, 6926738, 10390107, 20780214]

約数ペア:

[(1, 20780214), (2, 10390107), (3, 6926738), (6, 3463369), (7, 2968602), (13, 1598478), (14, 1484301), (21, 989534), (26, 799239), (39, 532826), (42, 494767), (49, 424086), (78, 266413), (91, 228354), (98, 212043), (147, 141362), (182, 114177), (273, 76118), (294, 70681), (546, 38059), (637, 32622), (1274, 16311), (1911, 10874), (3822, 5437)]