20369876

素因数分解:

$2^2\times {\mathrm{17}}^2\times {\mathrm{67}}^1\times {\mathrm{263}}^1$

素因数の和:368

約数の個数: 36

約数和(自身を含む): 38578848

約数和(自身を除く): 18208972

約数列:

[1, 2, 4, 17, 34, 67, 68, 134, 263, 268, 289, 526, 578, 1052, 1139, 1156, 2278, 4471, 4556, 8942, 17621, 17884, 19363, 35242, 38726, 70484, 76007, 77452, 152014, 299557, 304028, 599114, 1198228, 5092469, 10184938, 20369876]

約数ペア:

[(1, 20369876), (2, 10184938), (4, 5092469), (17, 1198228), (34, 599114), (67, 304028), (68, 299557), (134, 152014), (263, 77452), (268, 76007), (289, 70484), (526, 38726), (578, 35242), (1052, 19363), (1139, 17884), (1156, 17621), (2278, 8942), (4471, 4556)]