18575973

素因数分解:

$3^4\times {\mathrm{13}}^2\times {\mathrm{23}}^1\times {\mathrm{59}}^1$

素因数の和:120

約数の個数: 60

約数和(自身を含む): 31885920

約数和(自身を除く): 13309947

約数列:

[1, 3, 9, 13, 23, 27, 39, 59, 69, 81, 117, 169, 177, 207, 299, 351, 507, 531, 621, 767, 897, 1053, 1357, 1521, 1593, 1863, 2301, 2691, 3887, 4071, 4563, 4779, 6903, 8073, 9971, 11661, 12213, 13689, 17641, 20709, 24219, 29913, 34983, 36639, 52923, 62127, 89739, 104949, 109917, 158769, 229333, 269217, 314847, 476307, 687999, 807651, 1428921, 2063997, 6191991, 18575973]

約数ペア:

[(1, 18575973), (3, 6191991), (9, 2063997), (13, 1428921), (23, 807651), (27, 687999), (39, 476307), (59, 314847), (69, 269217), (81, 229333), (117, 158769), (169, 109917), (177, 104949), (207, 89739), (299, 62127), (351, 52923), (507, 36639), (531, 34983), (621, 29913), (767, 24219), (897, 20709), (1053, 17641), (1357, 13689), (1521, 12213), (1593, 11661), (1863, 9971), (2301, 8073), (2691, 6903), (3887, 4779), (4071, 4563)]