19512878

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{787}}^1$

素因数の和:837

約数の個数: 48

約数和(自身を含む): 38807424

約数和(自身を除く): 19294546

約数列:

[1, 2, 7, 11, 14, 22, 23, 46, 49, 77, 98, 154, 161, 253, 322, 506, 539, 787, 1078, 1127, 1574, 1771, 2254, 3542, 5509, 8657, 11018, 12397, 17314, 18101, 24794, 36202, 38563, 60599, 77126, 121198, 126707, 199111, 253414, 398222, 424193, 848386, 886949, 1393777, 1773898, 2787554, 9756439, 19512878]

約数ペア:

[(1, 19512878), (2, 9756439), (7, 2787554), (11, 1773898), (14, 1393777), (22, 886949), (23, 848386), (46, 424193), (49, 398222), (77, 253414), (98, 199111), (154, 126707), (161, 121198), (253, 77126), (322, 60599), (506, 38563), (539, 36202), (787, 24794), (1078, 18101), (1127, 17314), (1574, 12397), (1771, 11018), (2254, 8657), (3542, 5509)]