21442795

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{257}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 29647296

約数和(自身を除く): 8204501

約数列:

[1, 5, 11, 37, 41, 55, 185, 205, 257, 407, 451, 1285, 1517, 2035, 2255, 2827, 7585, 9509, 10537, 14135, 16687, 47545, 52685, 83435, 104599, 115907, 389869, 522995, 579535, 1949345, 4288559, 21442795]

約数ペア:

[(1, 21442795), (5, 4288559), (11, 1949345), (37, 579535), (41, 522995), (55, 389869), (185, 115907), (205, 104599), (257, 83435), (407, 52685), (451, 47545), (1285, 16687), (1517, 14135), (2035, 10537), (2255, 9509), (2827, 7585)]