1640456493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{978209}}^1$

素因数の和:978268

約数の個数: 16

約数和(自身を含む): 2410309440

約数和(自身を除く): 769852947

約数列:

[1, 3, 13, 39, 43, 129, 559, 1677, 978209, 2934627, 12716717, 38150151, 42062987, 126188961, 546818831, 1640456493]

約数ペア:

[(1, 1640456493), (3, 546818831), (13, 126188961), (39, 42062987), (43, 38150151), (129, 12716717), (559, 2934627), (1677, 978209)]