628974729

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{71}}^1\times {\mathrm{719}}^1$

素因数の和:870

約数の個数: 36

約数和(自身を含む): 948205440

約数和(自身を除く): 319230711

約数列:

[1, 3, 9, 37, 71, 111, 213, 333, 639, 719, 1369, 2157, 2627, 4107, 6471, 7881, 12321, 23643, 26603, 51049, 79809, 97199, 153147, 239427, 291597, 459441, 874791, 984311, 1888813, 2952933, 5666439, 8858799, 16999317, 69886081, 209658243, 628974729]

約数ペア:

[(1, 628974729), (3, 209658243), (9, 69886081), (37, 16999317), (71, 8858799), (111, 5666439), (213, 2952933), (333, 1888813), (639, 984311), (719, 874791), (1369, 459441), (2157, 291597), (2627, 239427), (4107, 153147), (6471, 97199), (7881, 79809), (12321, 51049), (23643, 26603)]