20851112

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{139}}^1\times {\mathrm{1103}}^1$

素因数の和:1265

約数の個数: 32

約数和(自身を含む): 41731200

約数和(自身を除く): 20880088

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 139, 278, 556, 1103, 1112, 2206, 2363, 4412, 4726, 8824, 9452, 18751, 18904, 37502, 75004, 150008, 153317, 306634, 613268, 1226536, 2606389, 5212778, 10425556, 20851112]

約数ペア:

[(1, 20851112), (2, 10425556), (4, 5212778), (8, 2606389), (17, 1226536), (34, 613268), (68, 306634), (136, 153317), (139, 150008), (278, 75004), (556, 37502), (1103, 18904), (1112, 18751), (2206, 9452), (2363, 8824), (4412, 4726)]