20906172

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{3607}}^1$

素因数の和:3647

約数の個数: 72

約数和(自身を含む): 63038976

約数和(自身を除く): 42132804

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 23, 28, 36, 42, 46, 63, 69, 84, 92, 126, 138, 161, 207, 252, 276, 322, 414, 483, 644, 828, 966, 1449, 1932, 2898, 3607, 5796, 7214, 10821, 14428, 21642, 25249, 32463, 43284, 50498, 64926, 75747, 82961, 100996, 129852, 151494, 165922, 227241, 248883, 302988, 331844, 454482, 497766, 580727, 746649, 908964, 995532, 1161454, 1493298, 1742181, 2322908, 2986596, 3484362, 5226543, 6968724, 10453086, 20906172]

約数ペア:

[(1, 20906172), (2, 10453086), (3, 6968724), (4, 5226543), (6, 3484362), (7, 2986596), (9, 2322908), (12, 1742181), (14, 1493298), (18, 1161454), (21, 995532), (23, 908964), (28, 746649), (36, 580727), (42, 497766), (46, 454482), (63, 331844), (69, 302988), (84, 248883), (92, 227241), (126, 165922), (138, 151494), (161, 129852), (207, 100996), (252, 82961), (276, 75747), (322, 64926), (414, 50498), (483, 43284), (644, 32463), (828, 25249), (966, 21642), (1449, 14428), (1932, 10821), (2898, 7214), (3607, 5796)]