20161794915

素因数分解:

$3^3\times 5^1\times {\mathrm{787}}^1\times {\mathrm{189767}}^1$

素因数の和:190568

約数の個数: 32

約数和(自身を含む): 35888924160

約数和(自身を除く): 15727129245

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 787, 2361, 3935, 7083, 11805, 21249, 35415, 106245, 189767, 569301, 948835, 1707903, 2846505, 5123709, 8539515, 25618545, 149346629, 448039887, 746733145, 1344119661, 2240199435, 4032358983, 6720598305, 20161794915]

約数ペア:

[(1, 20161794915), (3, 6720598305), (5, 4032358983), (9, 2240199435), (15, 1344119661), (27, 746733145), (45, 448039887), (135, 149346629), (787, 25618545), (2361, 8539515), (3935, 5123709), (7083, 2846505), (11805, 1707903), (21249, 948835), (35415, 569301), (106245, 189767)]