19901736

素因数分解:

$2^3\times 3^2\times {\mathrm{263}}^1\times {\mathrm{1051}}^1$

素因数の和:1326

約数の個数: 48

約数和(自身を含む): 54156960

約数和(自身を除く): 34255224

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 18, 24, 36, 72, 263, 526, 789, 1051, 1052, 1578, 2102, 2104, 2367, 3153, 3156, 4204, 4734, 6306, 6312, 8408, 9459, 9468, 12612, 18918, 18936, 25224, 37836, 75672, 276413, 552826, 829239, 1105652, 1658478, 2211304, 2487717, 3316956, 4975434, 6633912, 9950868, 19901736]

約数ペア:

[(1, 19901736), (2, 9950868), (3, 6633912), (4, 4975434), (6, 3316956), (8, 2487717), (9, 2211304), (12, 1658478), (18, 1105652), (24, 829239), (36, 552826), (72, 276413), (263, 75672), (526, 37836), (789, 25224), (1051, 18936), (1052, 18918), (1578, 12612), (2102, 9468), (2104, 9459), (2367, 8408), (3153, 6312), (3156, 6306), (4204, 4734)]