19215819

素因数分解:

$3^3\times 7^1\times {\mathrm{293}}^1\times {\mathrm{347}}^1$

素因数の和:656

約数の個数: 32

約数和(自身を含む): 32739840

約数和(自身を除く): 13524021

約数列:

[1, 3, 7, 9, 21, 27, 63, 189, 293, 347, 879, 1041, 2051, 2429, 2637, 3123, 6153, 7287, 7911, 9369, 18459, 21861, 55377, 65583, 101671, 305013, 711697, 915039, 2135091, 2745117, 6405273, 19215819]

約数ペア:

[(1, 19215819), (3, 6405273), (7, 2745117), (9, 2135091), (21, 915039), (27, 711697), (63, 305013), (189, 101671), (293, 65583), (347, 55377), (879, 21861), (1041, 18459), (2051, 9369), (2429, 7911), (2637, 7287), (3123, 6153)]