19728927

素因数分解:

$3^8\times {\mathrm{31}}^1\times {\mathrm{97}}^1$

素因数の和:152

約数の個数: 36

約数和(自身を含む): 30861376

約数和(自身を除く): 11132449

約数列:

[1, 3, 9, 27, 31, 81, 93, 97, 243, 279, 291, 729, 837, 873, 2187, 2511, 2619, 3007, 6561, 7533, 7857, 9021, 22599, 23571, 27063, 67797, 70713, 81189, 203391, 212139, 243567, 636417, 730701, 2192103, 6576309, 19728927]

約数ペア:

[(1, 19728927), (3, 6576309), (9, 2192103), (27, 730701), (31, 636417), (81, 243567), (93, 212139), (97, 203391), (243, 81189), (279, 70713), (291, 67797), (729, 27063), (837, 23571), (873, 22599), (2187, 9021), (2511, 7857), (2619, 7533), (3007, 6561)]