19727145

素因数分解:

$3^4\times 5^1\times {\mathrm{67}}^1\times {\mathrm{727}}^1$

素因数の和:811

約数の個数: 40

約数和(自身を含む): 35939904

約数和(自身を除く): 16212759

約数列:

[1, 3, 5, 9, 15, 27, 45, 67, 81, 135, 201, 335, 405, 603, 727, 1005, 1809, 2181, 3015, 3635, 5427, 6543, 9045, 10905, 19629, 27135, 32715, 48709, 58887, 98145, 146127, 243545, 294435, 438381, 730635, 1315143, 2191905, 3945429, 6575715, 19727145]

約数ペア:

[(1, 19727145), (3, 6575715), (5, 3945429), (9, 2191905), (15, 1315143), (27, 730635), (45, 438381), (67, 294435), (81, 243545), (135, 146127), (201, 98145), (335, 58887), (405, 48709), (603, 32715), (727, 27135), (1005, 19629), (1809, 10905), (2181, 9045), (3015, 6543), (3635, 5427)]