42815709

素因数分解:

$3^4\times {\mathrm{79}}^1\times {\mathrm{6691}}^1$

素因数の和:6782

約数の個数: 20

約数和(自身を含む): 64778560

約数和(自身を除く): 21962851

約数列:

[1, 3, 9, 27, 79, 81, 237, 711, 2133, 6399, 6691, 20073, 60219, 180657, 528589, 541971, 1585767, 4757301, 14271903, 42815709]

約数ペア:

[(1, 42815709), (3, 14271903), (9, 4757301), (27, 1585767), (79, 541971), (81, 528589), (237, 180657), (711, 60219), (2133, 20073), (6399, 6691)]