20426216

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{2203}}^1$

素因数の和:2289

約数の個数: 32

約数和(自身を含む): 40994400

約数和(自身を除く): 20568184

約数列:

[1, 2, 4, 8, 19, 38, 61, 76, 122, 152, 244, 488, 1159, 2203, 2318, 4406, 4636, 8812, 9272, 17624, 41857, 83714, 134383, 167428, 268766, 334856, 537532, 1075064, 2553277, 5106554, 10213108, 20426216]

約数ペア:

[(1, 20426216), (2, 10213108), (4, 5106554), (8, 2553277), (19, 1075064), (38, 537532), (61, 334856), (76, 268766), (122, 167428), (152, 134383), (244, 83714), (488, 41857), (1159, 17624), (2203, 9272), (2318, 8812), (4406, 4636)]