17943471

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:205

約数の個数: 64

約数和(自身を含む): 33510400

約数和(自身を除く): 15566929

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 63, 67, 91, 109, 117, 189, 201, 273, 327, 351, 469, 603, 763, 819, 871, 981, 1407, 1417, 1809, 2289, 2457, 2613, 2943, 4221, 4251, 6097, 6867, 7303, 7839, 9919, 12663, 12753, 18291, 20601, 21909, 23517, 29757, 38259, 51121, 54873, 65727, 89271, 94939, 153363, 164619, 197181, 267813, 284817, 460089, 664573, 854451, 1380267, 1993719, 2563353, 5981157, 17943471]

約数ペア:

[(1, 17943471), (3, 5981157), (7, 2563353), (9, 1993719), (13, 1380267), (21, 854451), (27, 664573), (39, 460089), (63, 284817), (67, 267813), (91, 197181), (109, 164619), (117, 153363), (189, 94939), (201, 89271), (273, 65727), (327, 54873), (351, 51121), (469, 38259), (603, 29757), (763, 23517), (819, 21909), (871, 20601), (981, 18291), (1407, 12753), (1417, 12663), (1809, 9919), (2289, 7839), (2457, 7303), (2613, 6867), (2943, 6097), (4221, 4251)]