18710109

素因数分解:

$3^4\times {\mathrm{11}}^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1$

素因数の和:140

約数の個数: 60

約数和(自身を含む): 32443488

約数和(自身を除く): 13733379

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 81, 83, 99, 121, 207, 249, 253, 297, 363, 621, 747, 759, 891, 913, 1089, 1863, 1909, 2241, 2277, 2739, 2783, 3267, 5727, 6723, 6831, 8217, 8349, 9801, 10043, 17181, 20493, 20999, 24651, 25047, 30129, 51543, 62997, 73953, 75141, 90387, 154629, 188991, 225423, 230989, 271161, 566973, 692967, 813483, 1700919, 2078901, 6236703, 18710109]

約数ペア:

[(1, 18710109), (3, 6236703), (9, 2078901), (11, 1700919), (23, 813483), (27, 692967), (33, 566973), (69, 271161), (81, 230989), (83, 225423), (99, 188991), (121, 154629), (207, 90387), (249, 75141), (253, 73953), (297, 62997), (363, 51543), (621, 30129), (747, 25047), (759, 24651), (891, 20999), (913, 20493), (1089, 17181), (1863, 10043), (1909, 9801), (2241, 8349), (2277, 8217), (2739, 6831), (2783, 6723), (3267, 5727)]