20091621

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{14159}}^1$

素因数の和:14216

約数の個数: 16

約数和(自身を含む): 29905920

約数和(自身を除く): 9814299

約数列:

[1, 3, 11, 33, 43, 129, 473, 1419, 14159, 42477, 155749, 467247, 608837, 1826511, 6697207, 20091621]

約数ペア:

[(1, 20091621), (3, 6697207), (11, 1826511), (33, 608837), (43, 467247), (129, 155749), (473, 42477), (1419, 14159)]