18678154

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{193}}^1$

素因数の和:342

約数の個数: 32

約数和(自身を含む): 31679424

約数和(自身を除く): 13001270

約数列:

[1, 2, 11, 22, 53, 83, 106, 166, 193, 386, 583, 913, 1166, 1826, 2123, 4246, 4399, 8798, 10229, 16019, 20458, 32038, 48389, 96778, 112519, 176209, 225038, 352418, 849007, 1698014, 9339077, 18678154]

約数ペア:

[(1, 18678154), (2, 9339077), (11, 1698014), (22, 849007), (53, 352418), (83, 225038), (106, 176209), (166, 112519), (193, 96778), (386, 48389), (583, 32038), (913, 20458), (1166, 16019), (1826, 10229), (2123, 8798), (4246, 4399)]