19278405

素因数分解:

$3^7\times 5^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1$

素因数の和:110

約数の個数: 64

約数和(自身を含む): 36368640

約数和(自身を除く): 17090235

約数列:

[1, 3, 5, 9, 15, 27, 41, 43, 45, 81, 123, 129, 135, 205, 215, 243, 369, 387, 405, 615, 645, 729, 1107, 1161, 1215, 1763, 1845, 1935, 2187, 3321, 3483, 3645, 5289, 5535, 5805, 8815, 9963, 10449, 10935, 15867, 16605, 17415, 26445, 29889, 31347, 47601, 49815, 52245, 79335, 89667, 94041, 142803, 149445, 156735, 238005, 428409, 448335, 470205, 714015, 1285227, 2142045, 3855681, 6426135, 19278405]

約数ペア:

[(1, 19278405), (3, 6426135), (5, 3855681), (9, 2142045), (15, 1285227), (27, 714015), (41, 470205), (43, 448335), (45, 428409), (81, 238005), (123, 156735), (129, 149445), (135, 142803), (205, 94041), (215, 89667), (243, 79335), (369, 52245), (387, 49815), (405, 47601), (615, 31347), (645, 29889), (729, 26445), (1107, 17415), (1161, 16605), (1215, 15867), (1763, 10935), (1845, 10449), (1935, 9963), (2187, 8815), (3321, 5805), (3483, 5535), (3645, 5289)]