51391557

素因数分解:

$3^3\times 7^1\times {\mathrm{37}}^1\times {\mathrm{7349}}^1$

素因数の和:7402

約数の個数: 32

約数和(自身を含む): 89376000

約数和(自身を除く): 37984443

約数列:

[1, 3, 7, 9, 21, 27, 37, 63, 111, 189, 259, 333, 777, 999, 2331, 6993, 7349, 22047, 51443, 66141, 154329, 198423, 271913, 462987, 815739, 1388961, 1903391, 2447217, 5710173, 7341651, 17130519, 51391557]

約数ペア:

[(1, 51391557), (3, 17130519), (7, 7341651), (9, 5710173), (21, 2447217), (27, 1903391), (37, 1388961), (63, 815739), (111, 462987), (189, 271913), (259, 198423), (333, 154329), (777, 66141), (999, 51443), (2331, 22047), (6993, 7349)]