31781079

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{673}}^1$

素因数の和:749

約数の個数: 40

約数和(自身を含む): 52846992

約数和(自身を除く): 21065913

約数列:

[1, 3, 9, 11, 27, 33, 53, 81, 99, 159, 297, 477, 583, 673, 891, 1431, 1749, 2019, 4293, 5247, 6057, 7403, 15741, 18171, 22209, 35669, 47223, 54513, 66627, 107007, 199881, 321021, 392359, 599643, 963063, 1177077, 2889189, 3531231, 10593693, 31781079]

約数ペア:

[(1, 31781079), (3, 10593693), (9, 3531231), (11, 2889189), (27, 1177077), (33, 963063), (53, 599643), (81, 392359), (99, 321021), (159, 199881), (297, 107007), (477, 66627), (583, 54513), (673, 47223), (891, 35669), (1431, 22209), (1749, 18171), (2019, 15741), (4293, 7403), (5247, 6057)]