21555512

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{397}}^1\times {\mathrm{617}}^1$

素因数の和:1031

約数の個数: 32

約数和(自身を含む): 44273520

約数和(自身を除く): 22718008

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 397, 617, 794, 1234, 1588, 2468, 3176, 4367, 4936, 6787, 8734, 13574, 17468, 27148, 34936, 54296, 244949, 489898, 979796, 1959592, 2694439, 5388878, 10777756, 21555512]

約数ペア:

[(1, 21555512), (2, 10777756), (4, 5388878), (8, 2694439), (11, 1959592), (22, 979796), (44, 489898), (88, 244949), (397, 54296), (617, 34936), (794, 27148), (1234, 17468), (1588, 13574), (2468, 8734), (3176, 6787), (4367, 4936)]