19095741

素因数分解:

$3^2\times 7^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:135

約数の個数: 72

約数和(自身を含む): 35212320

約数和(自身を除く): 16116579

約数列:

[1, 3, 7, 9, 19, 21, 43, 49, 53, 57, 63, 129, 133, 147, 159, 171, 301, 371, 387, 399, 441, 477, 817, 903, 931, 1007, 1113, 1197, 2107, 2279, 2451, 2597, 2709, 2793, 3021, 3339, 5719, 6321, 6837, 7049, 7353, 7791, 8379, 9063, 15953, 17157, 18963, 20511, 21147, 23373, 40033, 43301, 47859, 49343, 51471, 63441, 111671, 120099, 129903, 143577, 148029, 303107, 335013, 360297, 389709, 444087, 909321, 1005039, 2121749, 2727963, 6365247, 19095741]

約数ペア:

[(1, 19095741), (3, 6365247), (7, 2727963), (9, 2121749), (19, 1005039), (21, 909321), (43, 444087), (49, 389709), (53, 360297), (57, 335013), (63, 303107), (129, 148029), (133, 143577), (147, 129903), (159, 120099), (171, 111671), (301, 63441), (371, 51471), (387, 49343), (399, 47859), (441, 43301), (477, 40033), (817, 23373), (903, 21147), (931, 20511), (1007, 18963), (1113, 17157), (1197, 15953), (2107, 9063), (2279, 8379), (2451, 7791), (2597, 7353), (2709, 7049), (2793, 6837), (3021, 6321), (3339, 5719)]