18613969

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{59}}^1$

素因数の和:165

約数の個数: 32

約数和(自身を含む): 22809600

約数和(自身を除く): 4195631

約数列:

[1, 11, 23, 29, 43, 59, 253, 319, 473, 649, 667, 989, 1247, 1357, 1711, 2537, 7337, 10879, 13717, 14927, 18821, 27907, 28681, 39353, 58351, 73573, 315491, 432883, 641861, 809303, 1692179, 18613969]

約数ペア:

[(1, 18613969), (11, 1692179), (23, 809303), (29, 641861), (43, 432883), (59, 315491), (253, 73573), (319, 58351), (473, 39353), (649, 28681), (667, 27907), (989, 18821), (1247, 14927), (1357, 13717), (1711, 10879), (2537, 7337)]