20784148

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{67481}}^1$

素因数の和:67503

約数の個数: 24

約数和(自身を含む): 45347904

約数和(自身を除く): 24563756

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 67481, 134962, 269924, 472367, 742291, 944734, 1484582, 1889468, 2969164, 5196037, 10392074, 20784148]

約数ペア:

[(1, 20784148), (2, 10392074), (4, 5196037), (7, 2969164), (11, 1889468), (14, 1484582), (22, 944734), (28, 742291), (44, 472367), (77, 269924), (154, 134962), (308, 67481)]