19520919

素因数分解:

$3^5\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:202

約数の個数: 48

約数和(自身を含む): 32672640

約数和(自身を除く): 13151721

約数列:

[1, 3, 9, 11, 27, 33, 67, 81, 99, 109, 201, 243, 297, 327, 603, 737, 891, 981, 1199, 1809, 2211, 2673, 2943, 3597, 5427, 6633, 7303, 8829, 10791, 16281, 19899, 21909, 26487, 32373, 59697, 65727, 80333, 97119, 179091, 197181, 240999, 291357, 591543, 722997, 1774629, 2168991, 6506973, 19520919]

約数ペア:

[(1, 19520919), (3, 6506973), (9, 2168991), (11, 1774629), (27, 722997), (33, 591543), (67, 291357), (81, 240999), (99, 197181), (109, 179091), (201, 97119), (243, 80333), (297, 65727), (327, 59697), (603, 32373), (737, 26487), (891, 21909), (981, 19899), (1199, 16281), (1809, 10791), (2211, 8829), (2673, 7303), (2943, 6633), (3597, 5427)]