21055412

素因数分解:

$2^2\times 7^1\times {\mathrm{179}}^1\times {\mathrm{4201}}^1$

素因数の和:4391

約数の個数: 24

約数和(自身を含む): 42356160

約数和(自身を除く): 21300748

約数列:

[1, 2, 4, 7, 14, 28, 179, 358, 716, 1253, 2506, 4201, 5012, 8402, 16804, 29407, 58814, 117628, 751979, 1503958, 3007916, 5263853, 10527706, 21055412]

約数ペア:

[(1, 21055412), (2, 10527706), (4, 5263853), (7, 3007916), (14, 1503958), (28, 751979), (179, 117628), (358, 58814), (716, 29407), (1253, 16804), (2506, 8402), (4201, 5012)]