20187928719

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1340767}}^1$

素因数の和:1341019

約数の個数: 24

約数和(自身を含む): 33465569280

約数和(自身を除く): 13277640561

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2151, 5019, 15057, 1340767, 4022301, 9385369, 12066903, 28156107, 84468321, 320443313, 961329939, 2243103191, 2883989817, 6729309573, 20187928719]

約数ペア:

[(1, 20187928719), (3, 6729309573), (7, 2883989817), (9, 2243103191), (21, 961329939), (63, 320443313), (239, 84468321), (717, 28156107), (1673, 12066903), (2151, 9385369), (5019, 4022301), (15057, 1340767)]