261129609

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{20107}}^1$

素因数の和:20166

約数の個数: 32

約数和(自身を含む): 427898240

約数和(自身を除く): 166768631

約数列:

[1, 3, 9, 13, 27, 37, 39, 111, 117, 333, 351, 481, 999, 1443, 4329, 12987, 20107, 60321, 180963, 261391, 542889, 743959, 784173, 2231877, 2352519, 6695631, 7057557, 9671467, 20086893, 29014401, 87043203, 261129609]

約数ペア:

[(1, 261129609), (3, 87043203), (9, 29014401), (13, 20086893), (27, 9671467), (37, 7057557), (39, 6695631), (111, 2352519), (117, 2231877), (333, 784173), (351, 743959), (481, 542889), (999, 261391), (1443, 180963), (4329, 60321), (12987, 20107)]