20287696

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{8867}}^1$

素因数の和:8899

約数の個数: 40

約数和(自身を含む): 46184544

約数和(自身を除く): 25896848

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 88, 104, 143, 176, 208, 286, 572, 1144, 2288, 8867, 17734, 35468, 70936, 97537, 115271, 141872, 195074, 230542, 390148, 461084, 780296, 922168, 1267981, 1560592, 1844336, 2535962, 5071924, 10143848, 20287696]

約数ペア:

[(1, 20287696), (2, 10143848), (4, 5071924), (8, 2535962), (11, 1844336), (13, 1560592), (16, 1267981), (22, 922168), (26, 780296), (44, 461084), (52, 390148), (88, 230542), (104, 195074), (143, 141872), (176, 115271), (208, 97537), (286, 70936), (572, 35468), (1144, 17734), (2288, 8867)]