20413778

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1867}}^1$

素因数の和:1958

約数の個数: 32

約数和(自身を含む): 38734848

約数和(自身を除く): 18321070

約数列:

[1, 2, 7, 11, 14, 22, 71, 77, 142, 154, 497, 781, 994, 1562, 1867, 3734, 5467, 10934, 13069, 20537, 26138, 41074, 132557, 143759, 265114, 287518, 927899, 1458127, 1855798, 2916254, 10206889, 20413778]

約数ペア:

[(1, 20413778), (2, 10206889), (7, 2916254), (11, 1855798), (14, 1458127), (22, 927899), (71, 287518), (77, 265114), (142, 143759), (154, 132557), (497, 41074), (781, 26138), (994, 20537), (1562, 13069), (1867, 10934), (3734, 5467)]