81239774

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{563}}^1\times {\mathrm{937}}^1$

素因数の和:1520

約数の個数: 32

約数和(自身を含む): 152361216

約数和(自身を除く): 71121442

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 563, 937, 1126, 1874, 3941, 6193, 6559, 7882, 10307, 12386, 13118, 20614, 43351, 72149, 86702, 144298, 527531, 1055062, 3692717, 5802841, 7385434, 11605682, 40619887, 81239774]

約数ペア:

[(1, 81239774), (2, 40619887), (7, 11605682), (11, 7385434), (14, 5802841), (22, 3692717), (77, 1055062), (154, 527531), (563, 144298), (937, 86702), (1126, 72149), (1874, 43351), (3941, 20614), (6193, 13118), (6559, 12386), (7882, 10307)]