2490691

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:394

約数の個数: 16

約数和(自身を含む): 3055360

約数和(自身を除く): 564669

約数列:

[1, 7, 19, 61, 133, 307, 427, 1159, 2149, 5833, 8113, 18727, 40831, 131089, 355813, 2490691]

約数ペア:

[(1, 2490691), (7, 355813), (19, 131089), (61, 40831), (133, 18727), (307, 8113), (427, 5833), (1159, 2149)]