20219908737

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{713753}}^1$

素因数の和:713853

約数の個数: 32

約数和(自身を含む): 32889784320

約数和(自身を除く): 12669875583

約数列:

[1, 3, 7, 19, 21, 57, 71, 133, 213, 399, 497, 1349, 1491, 4047, 9443, 28329, 713753, 2141259, 4996271, 13561307, 14988813, 40683921, 50676463, 94929149, 152029389, 284787447, 354735241, 962852797, 1064205723, 2888558391, 6739969579, 20219908737]

約数ペア:

[(1, 20219908737), (3, 6739969579), (7, 2888558391), (19, 1064205723), (21, 962852797), (57, 354735241), (71, 284787447), (133, 152029389), (213, 94929149), (399, 50676463), (497, 40683921), (1349, 14988813), (1491, 13561307), (4047, 4996271), (9443, 2141259), (28329, 713753)]