18927477

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{19}}^1\times {\mathrm{383}}^1$

素因数の和:442

約数の個数: 36

約数和(自身を含む): 30650880

約数和(自身を除く): 11723403

約数列:

[1, 3, 9, 17, 19, 51, 57, 153, 171, 289, 323, 383, 867, 969, 1149, 2601, 2907, 3447, 5491, 6511, 7277, 16473, 19533, 21831, 49419, 58599, 65493, 110687, 123709, 332061, 371127, 996183, 1113381, 2103053, 6309159, 18927477]

約数ペア:

[(1, 18927477), (3, 6309159), (9, 2103053), (17, 1113381), (19, 996183), (51, 371127), (57, 332061), (153, 123709), (171, 110687), (289, 65493), (323, 58599), (383, 49419), (867, 21831), (969, 19533), (1149, 16473), (2601, 7277), (2907, 6511), (3447, 5491)]