2054385

素因数分解:

$3^2\times 5^1\times {\mathrm{71}}^1\times {\mathrm{643}}^1$

素因数の和:725

約数の個数: 24

約数和(自身を含む): 3616704

約数和(自身を除く): 1562319

約数列:

[1, 3, 5, 9, 15, 45, 71, 213, 355, 639, 643, 1065, 1929, 3195, 3215, 5787, 9645, 28935, 45653, 136959, 228265, 410877, 684795, 2054385]

約数ペア:

[(1, 2054385), (3, 684795), (5, 410877), (9, 228265), (15, 136959), (45, 45653), (71, 28935), (213, 9645), (355, 5787), (639, 3215), (643, 3195), (1065, 1929)]