21990712

素因数分解:

$2^3\times {\mathrm{569}}^1\times {\mathrm{4831}}^1$

素因数の和:5406

約数の個数: 16

約数和(自身を含む): 41313600

約数和(自身を除く): 19322888

約数列:

[1, 2, 4, 8, 569, 1138, 2276, 4552, 4831, 9662, 19324, 38648, 2748839, 5497678, 10995356, 21990712]

約数ペア:

[(1, 21990712), (2, 10995356), (4, 5497678), (8, 2748839), (569, 38648), (1138, 19324), (2276, 9662), (4552, 4831)]