20891682

素因数分解:

$2^1\times 3^6\times 7^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1$

素因数の和:139

約数の個数: 112

約数和(自身を含む): 56661120

約数和(自身を除く): 35769438

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 23, 27, 42, 46, 54, 63, 69, 81, 89, 126, 138, 161, 162, 178, 189, 207, 243, 267, 322, 378, 414, 483, 486, 534, 567, 621, 623, 729, 801, 966, 1134, 1242, 1246, 1449, 1458, 1602, 1701, 1863, 1869, 2047, 2403, 2898, 3402, 3726, 3738, 4094, 4347, 4806, 5103, 5589, 5607, 6141, 7209, 8694, 10206, 11178, 11214, 12282, 13041, 14329, 14418, 16767, 16821, 18423, 21627, 26082, 28658, 33534, 33642, 36846, 39123, 42987, 43254, 50463, 55269, 64881, 78246, 85974, 100926, 110538, 117369, 128961, 129762, 151389, 165807, 234738, 257922, 302778, 331614, 386883, 454167, 497421, 773766, 908334, 994842, 1160649, 1492263, 2321298, 2984526, 3481947, 6963894, 10445841, 20891682]

約数ペア:

[(1, 20891682), (2, 10445841), (3, 6963894), (6, 3481947), (7, 2984526), (9, 2321298), (14, 1492263), (18, 1160649), (21, 994842), (23, 908334), (27, 773766), (42, 497421), (46, 454167), (54, 386883), (63, 331614), (69, 302778), (81, 257922), (89, 234738), (126, 165807), (138, 151389), (161, 129762), (162, 128961), (178, 117369), (189, 110538), (207, 100926), (243, 85974), (267, 78246), (322, 64881), (378, 55269), (414, 50463), (483, 43254), (486, 42987), (534, 39123), (567, 36846), (621, 33642), (623, 33534), (729, 28658), (801, 26082), (966, 21627), (1134, 18423), (1242, 16821), (1246, 16767), (1449, 14418), (1458, 14329), (1602, 13041), (1701, 12282), (1863, 11214), (1869, 11178), (2047, 10206), (2403, 8694), (2898, 7209), (3402, 6141), (3726, 5607), (3738, 5589), (4094, 5103), (4347, 4806)]