201563721

素因数分解:

$3^4\times {\mathrm{419}}^1\times {\mathrm{5939}}^1$

素因数の和:6370

約数の個数: 20

約数和(自身を含む): 301870800

約数和(自身を除く): 100307079

約数列:

[1, 3, 9, 27, 81, 419, 1257, 3771, 5939, 11313, 17817, 33939, 53451, 160353, 481059, 2488441, 7465323, 22395969, 67187907, 201563721]

約数ペア:

[(1, 201563721), (3, 67187907), (9, 22395969), (27, 7465323), (81, 2488441), (419, 481059), (1257, 160353), (3771, 53451), (5939, 33939), (11313, 17817)]