21906181

素因数分解:

${\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{227}}^1\times {\mathrm{283}}^1$

素因数の和:552

約数の個数: 16

約数和(自身を含む): 24864768

約数和(自身を除く): 2958587

約数列:

[1, 11, 31, 227, 283, 341, 2497, 3113, 7037, 8773, 64241, 77407, 96503, 706651, 1991471, 21906181]

約数ペア:

[(1, 21906181), (11, 1991471), (31, 706651), (227, 96503), (283, 77407), (341, 64241), (2497, 8773), (3113, 7037)]