18736641

素因数分解:

$3^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1466

約数の個数: 48

約数和(自身を含む): 35543040

約数和(自身を除く): 16806399

約数列:

[1, 3, 7, 9, 11, 19, 21, 33, 57, 63, 77, 99, 133, 171, 209, 231, 399, 627, 693, 1197, 1423, 1463, 1881, 4269, 4389, 9961, 12807, 13167, 15653, 27037, 29883, 46959, 81111, 89649, 109571, 140877, 189259, 243333, 297407, 328713, 567777, 892221, 986139, 1703331, 2081849, 2676663, 6245547, 18736641]

約数ペア:

[(1, 18736641), (3, 6245547), (7, 2676663), (9, 2081849), (11, 1703331), (19, 986139), (21, 892221), (33, 567777), (57, 328713), (63, 297407), (77, 243333), (99, 189259), (133, 140877), (171, 109571), (209, 89649), (231, 81111), (399, 46959), (627, 29883), (693, 27037), (1197, 15653), (1423, 13167), (1463, 12807), (1881, 9961), (4269, 4389)]