21491724

素因数分解:

$2^2\times 3^1\times {\mathrm{67}}^1\times {\mathrm{26731}}^1$

素因数の和:26805

約数の個数: 24

約数和(自身を含む): 50897728

約数和(自身を除く): 29406004

約数列:

[1, 2, 3, 4, 6, 12, 67, 134, 201, 268, 402, 804, 26731, 53462, 80193, 106924, 160386, 320772, 1790977, 3581954, 5372931, 7163908, 10745862, 21491724]

約数ペア:

[(1, 21491724), (2, 10745862), (3, 7163908), (4, 5372931), (6, 3581954), (12, 1790977), (67, 320772), (134, 160386), (201, 106924), (268, 80193), (402, 53462), (804, 26731)]