1620339

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{131}}^1$

素因数の和:191

約数の個数: 32

約数和(自身を含む): 2703360

約数和(自身を除く): 1083021

約数列:

[1, 3, 7, 19, 21, 31, 57, 93, 131, 133, 217, 393, 399, 589, 651, 917, 1767, 2489, 2751, 4061, 4123, 7467, 12183, 12369, 17423, 28427, 52269, 77159, 85281, 231477, 540113, 1620339]

約数ペア:

[(1, 1620339), (3, 540113), (7, 231477), (19, 85281), (21, 77159), (31, 52269), (57, 28427), (93, 17423), (131, 12369), (133, 12183), (217, 7467), (393, 4123), (399, 4061), (589, 2751), (651, 2489), (917, 1767)]