18777276

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{277}}^1$

素因数の和:563

約数の個数: 72

約数和(自身を含む): 54643680

約数和(自身を除く): 35866404

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 252, 269, 277, 538, 554, 807, 831, 1076, 1108, 1614, 1662, 1883, 1939, 2421, 2493, 3228, 3324, 3766, 3878, 4842, 4986, 5649, 5817, 7532, 7756, 9684, 9972, 11298, 11634, 16947, 17451, 22596, 23268, 33894, 34902, 67788, 69804, 74513, 149026, 223539, 298052, 447078, 521591, 670617, 894156, 1043182, 1341234, 1564773, 2086364, 2682468, 3129546, 4694319, 6259092, 9388638, 18777276]

約数ペア:

[(1, 18777276), (2, 9388638), (3, 6259092), (4, 4694319), (6, 3129546), (7, 2682468), (9, 2086364), (12, 1564773), (14, 1341234), (18, 1043182), (21, 894156), (28, 670617), (36, 521591), (42, 447078), (63, 298052), (84, 223539), (126, 149026), (252, 74513), (269, 69804), (277, 67788), (538, 34902), (554, 33894), (807, 23268), (831, 22596), (1076, 17451), (1108, 16947), (1614, 11634), (1662, 11298), (1883, 9972), (1939, 9684), (2421, 7756), (2493, 7532), (3228, 5817), (3324, 5649), (3766, 4986), (3878, 4842)]