21368764

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{283}}^1\times {\mathrm{439}}^1$

素因数の和:769

約数の個数: 24

約数和(自身を含む): 38487680

約数和(自身を除く): 17118916

約数列:

[1, 2, 4, 43, 86, 172, 283, 439, 566, 878, 1132, 1756, 12169, 18877, 24338, 37754, 48676, 75508, 124237, 248474, 496948, 5342191, 10684382, 21368764]

約数ペア:

[(1, 21368764), (2, 10684382), (4, 5342191), (43, 496948), (86, 248474), (172, 124237), (283, 75508), (439, 48676), (566, 37754), (878, 24338), (1132, 18877), (1756, 12169)]