21563674

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{59}}^1\times {\mathrm{449}}^1$

素因数の和:558

約数の個数: 32

約数和(自身を含む): 36936000

約数和(自身を除く): 15372326

約数列:

[1, 2, 11, 22, 37, 59, 74, 118, 407, 449, 649, 814, 898, 1298, 2183, 4366, 4939, 9878, 16613, 24013, 26491, 33226, 48026, 52982, 182743, 291401, 365486, 582802, 980167, 1960334, 10781837, 21563674]

約数ペア:

[(1, 21563674), (2, 10781837), (11, 1960334), (22, 980167), (37, 582802), (59, 365486), (74, 291401), (118, 182743), (407, 52982), (449, 48026), (649, 33226), (814, 26491), (898, 24013), (1298, 16613), (2183, 9878), (4366, 4939)]