331779

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{61}}^1$

素因数の和:115

約数の個数: 24

約数和(自身を含む): 537168

約数和(自身を除く): 205389

約数列:

[1, 3, 7, 21, 37, 49, 61, 111, 147, 183, 259, 427, 777, 1281, 1813, 2257, 2989, 5439, 6771, 8967, 15799, 47397, 110593, 331779]

約数ペア:

[(1, 331779), (3, 110593), (7, 47397), (21, 15799), (37, 8967), (49, 6771), (61, 5439), (111, 2989), (147, 2257), (183, 1813), (259, 1281), (427, 777)]