20858084

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{37}}^2\times {\mathrm{293}}^1$

素因数の和:384

約数の個数: 36

約数和(自身を含む): 40538484

約数和(自身を除く): 19680400

約数列:

[1, 2, 4, 13, 26, 37, 52, 74, 148, 293, 481, 586, 962, 1172, 1369, 1924, 2738, 3809, 5476, 7618, 10841, 15236, 17797, 21682, 35594, 43364, 71188, 140933, 281866, 401117, 563732, 802234, 1604468, 5214521, 10429042, 20858084]

約数ペア:

[(1, 20858084), (2, 10429042), (4, 5214521), (13, 1604468), (26, 802234), (37, 563732), (52, 401117), (74, 281866), (148, 140933), (293, 71188), (481, 43364), (586, 35594), (962, 21682), (1172, 17797), (1369, 15236), (1924, 10841), (2738, 7618), (3809, 5476)]