21297448

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{283}}^1\times {\mathrm{409}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 41918400

約数和(自身を除く): 20620952

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 283, 409, 566, 818, 1132, 1636, 2264, 3272, 6509, 9407, 13018, 18814, 26036, 37628, 52072, 75256, 115747, 231494, 462988, 925976, 2662181, 5324362, 10648724, 21297448]

約数ペア:

[(1, 21297448), (2, 10648724), (4, 5324362), (8, 2662181), (23, 925976), (46, 462988), (92, 231494), (184, 115747), (283, 75256), (409, 52072), (566, 37628), (818, 26036), (1132, 18814), (1636, 13018), (2264, 9407), (3272, 6509)]