19542393

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{149}}^1$

素因数の和:246

約数の個数: 48

約数和(自身を含む): 32760000

約数和(自身を除く): 13217607

約数列:

[1, 3, 9, 13, 19, 39, 57, 59, 117, 149, 171, 177, 247, 447, 531, 741, 767, 1121, 1341, 1937, 2223, 2301, 2831, 3363, 5811, 6903, 8493, 8791, 10089, 14573, 17433, 25479, 26373, 36803, 43719, 79119, 110409, 114283, 131157, 167029, 331227, 342849, 501087, 1028547, 1503261, 2171377, 6514131, 19542393]

約数ペア:

[(1, 19542393), (3, 6514131), (9, 2171377), (13, 1503261), (19, 1028547), (39, 501087), (57, 342849), (59, 331227), (117, 167029), (149, 131157), (171, 114283), (177, 110409), (247, 79119), (447, 43719), (531, 36803), (741, 26373), (767, 25479), (1121, 17433), (1341, 14573), (1937, 10089), (2223, 8791), (2301, 8493), (2831, 6903), (3363, 5811)]