42647877

素因数分解:

$3^4\times {\mathrm{239}}^1\times {\mathrm{2203}}^1$

素因数の和:2454

約数の個数: 20

約数和(自身を含む): 64004160

約数和(自身を除く): 21356283

約数列:

[1, 3, 9, 27, 81, 239, 717, 2151, 2203, 6453, 6609, 19359, 19827, 59481, 178443, 526517, 1579551, 4738653, 14215959, 42647877]

約数ペア:

[(1, 42647877), (3, 14215959), (9, 4738653), (27, 1579551), (81, 526517), (239, 178443), (717, 59481), (2151, 19827), (2203, 19359), (6453, 6609)]