21792381

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{53}}^1\times {\mathrm{811}}^1$

素因数の和:893

約数の個数: 24

約数和(自身を含む): 32096736

約数和(自身を除く): 10304355

約数列:

[1, 3, 13, 39, 53, 159, 169, 507, 689, 811, 2067, 2433, 8957, 10543, 26871, 31629, 42983, 128949, 137059, 411177, 558779, 1676337, 7264127, 21792381]

約数ペア:

[(1, 21792381), (3, 7264127), (13, 1676337), (39, 558779), (53, 411177), (159, 137059), (169, 128949), (507, 42983), (689, 31629), (811, 26871), (2067, 10543), (2433, 8957)]