204477

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1$

素因数の和:137

約数の個数: 24

約数和(自身を含む): 344736

約数和(自身を除く): 140259

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 107, 147, 273, 321, 637, 749, 1391, 1911, 2247, 4173, 5243, 9737, 15729, 29211, 68159, 204477]

約数ペア:

[(1, 204477), (3, 68159), (7, 29211), (13, 15729), (21, 9737), (39, 5243), (49, 4173), (91, 2247), (107, 1911), (147, 1391), (273, 749), (321, 637)]