1561665

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{107}}^1\times {\mathrm{139}}^1$

素因数の和:261

約数の個数: 32

約数和(自身を含む): 2903040

約数和(自身を除く): 1341375

約数列:

[1, 3, 5, 7, 15, 21, 35, 105, 107, 139, 321, 417, 535, 695, 749, 973, 1605, 2085, 2247, 2919, 3745, 4865, 11235, 14595, 14873, 44619, 74365, 104111, 223095, 312333, 520555, 1561665]

約数ペア:

[(1, 1561665), (3, 520555), (5, 312333), (7, 223095), (15, 104111), (21, 74365), (35, 44619), (105, 14873), (107, 14595), (139, 11235), (321, 4865), (417, 3745), (535, 2919), (695, 2247), (749, 2085), (973, 1605)]