19872195

素因数分解:

$3^1\times 5^1\times 7^2\times {\mathrm{19}}^1\times {\mathrm{1423}}^1$

素因数の和:1464

約数の個数: 48

約数和(自身を含む): 38960640

約数和(自身を除く): 19088445

約数列:

[1, 3, 5, 7, 15, 19, 21, 35, 49, 57, 95, 105, 133, 147, 245, 285, 399, 665, 735, 931, 1423, 1995, 2793, 4269, 4655, 7115, 9961, 13965, 21345, 27037, 29883, 49805, 69727, 81111, 135185, 149415, 189259, 209181, 348635, 405555, 567777, 946295, 1045905, 1324813, 2838885, 3974439, 6624065, 19872195]

約数ペア:

[(1, 19872195), (3, 6624065), (5, 3974439), (7, 2838885), (15, 1324813), (19, 1045905), (21, 946295), (35, 567777), (49, 405555), (57, 348635), (95, 209181), (105, 189259), (133, 149415), (147, 135185), (245, 81111), (285, 69727), (399, 49805), (665, 29883), (735, 27037), (931, 21345), (1423, 13965), (1995, 9961), (2793, 7115), (4269, 4655)]