21645063

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1429}}^1$

素因数の和:1469

約数の個数: 40

約数和(自身を含む): 37374480

約数和(自身を除く): 15729417

約数列:

[1, 3, 9, 11, 17, 27, 33, 51, 81, 99, 153, 187, 297, 459, 561, 891, 1377, 1429, 1683, 4287, 5049, 12861, 15147, 15719, 24293, 38583, 47157, 72879, 115749, 141471, 218637, 267223, 424413, 655911, 801669, 1273239, 1967733, 2405007, 7215021, 21645063]

約数ペア:

[(1, 21645063), (3, 7215021), (9, 2405007), (11, 1967733), (17, 1273239), (27, 801669), (33, 655911), (51, 424413), (81, 267223), (99, 218637), (153, 141471), (187, 115749), (297, 72879), (459, 47157), (561, 38583), (891, 24293), (1377, 15719), (1429, 15147), (1683, 12861), (4287, 5049)]