21462805

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1097}}^1$

素因数の和:1165

約数の個数: 32

約数和(自身を含む): 32465664

約数和(自身を除く): 11002859

約数列:

[1, 5, 7, 13, 35, 43, 65, 91, 215, 301, 455, 559, 1097, 1505, 2795, 3913, 5485, 7679, 14261, 19565, 38395, 47171, 71305, 99827, 235855, 330197, 499135, 613223, 1650985, 3066115, 4292561, 21462805]

約数ペア:

[(1, 21462805), (5, 4292561), (7, 3066115), (13, 1650985), (35, 613223), (43, 499135), (65, 330197), (91, 235855), (215, 99827), (301, 71305), (455, 47171), (559, 38395), (1097, 19565), (1505, 14261), (2795, 7679), (3913, 5485)]