21119728

素因数分解:

$2^4\times 7^1\times {\mathrm{269}}^1\times {\mathrm{701}}^1$

素因数の和:985

約数の個数: 40

約数和(自身を含む): 47005920

約数和(自身を除く): 25886192

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 269, 538, 701, 1076, 1402, 1883, 2152, 2804, 3766, 4304, 4907, 5608, 7532, 9814, 11216, 15064, 19628, 30128, 39256, 78512, 188569, 377138, 754276, 1319983, 1508552, 2639966, 3017104, 5279932, 10559864, 21119728]

約数ペア:

[(1, 21119728), (2, 10559864), (4, 5279932), (7, 3017104), (8, 2639966), (14, 1508552), (16, 1319983), (28, 754276), (56, 377138), (112, 188569), (269, 78512), (538, 39256), (701, 30128), (1076, 19628), (1402, 15064), (1883, 11216), (2152, 9814), (2804, 7532), (3766, 5608), (4304, 4907)]