16490815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{71}}^1\times {\mathrm{103}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 22643712

約数和(自身を除く): 6152897

約数列:

[1, 5, 11, 41, 55, 71, 103, 205, 355, 451, 515, 781, 1133, 2255, 2911, 3905, 4223, 5665, 7313, 14555, 21115, 32021, 36565, 46453, 80443, 160105, 232265, 299833, 402215, 1499165, 3298163, 16490815]

約数ペア:

[(1, 16490815), (5, 3298163), (11, 1499165), (41, 402215), (55, 299833), (71, 232265), (103, 160105), (205, 80443), (355, 46453), (451, 36565), (515, 32021), (781, 21115), (1133, 14555), (2255, 7313), (2911, 5665), (3905, 4223)]