20197740549

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{1471}}^1\times {\mathrm{9209}}^1$

素因数の和:10761

約数の個数: 32

約数和(自身を含む): 31235604480

約数和(自身を除く): 11037863931

約数列:

[1, 3, 7, 21, 71, 213, 497, 1471, 1491, 4413, 9209, 10297, 27627, 30891, 64463, 104441, 193389, 313323, 653839, 731087, 1961517, 2193261, 4576873, 13546439, 13730619, 40639317, 94825073, 284475219, 961797169, 2885391507, 6732580183, 20197740549]

約数ペア:

[(1, 20197740549), (3, 6732580183), (7, 2885391507), (21, 961797169), (71, 284475219), (213, 94825073), (497, 40639317), (1471, 13730619), (1491, 13546439), (4413, 4576873), (9209, 2193261), (10297, 1961517), (27627, 731087), (30891, 653839), (64463, 313323), (104441, 193389)]