261922367

素因数分解:

$7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{20593}}^1$

素因数の和:20702

約数の個数: 16

約数和(自身を含む): 316323840

約数和(自身を除く): 54401473

約数列:

[1, 7, 23, 79, 161, 553, 1817, 12719, 20593, 144151, 473639, 1626847, 3315473, 11387929, 37417481, 261922367]

約数ペア:

[(1, 261922367), (7, 37417481), (23, 11387929), (79, 3315473), (161, 1626847), (553, 473639), (1817, 144151), (12719, 20593)]