20802843

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{179}}^1\times {\mathrm{349}}^1$

素因数の和:571

約数の個数: 24

約数和(自身を含む): 31122000

約数和(自身を除く): 10319157

約数列:

[1, 3, 9, 37, 111, 179, 333, 349, 537, 1047, 1611, 3141, 6623, 12913, 19869, 38739, 59607, 62471, 116217, 187413, 562239, 2311427, 6934281, 20802843]

約数ペア:

[(1, 20802843), (3, 6934281), (9, 2311427), (37, 562239), (111, 187413), (179, 116217), (333, 62471), (349, 59607), (537, 38739), (1047, 19869), (1611, 12913), (3141, 6623)]