15765981

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{521}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 26459136

約数和(自身を除く): 10693155

約数列:

[1, 3, 7, 11, 21, 33, 77, 131, 231, 393, 521, 917, 1441, 1563, 2751, 3647, 4323, 5731, 10087, 10941, 17193, 30261, 40117, 68251, 120351, 204753, 477757, 750761, 1433271, 2252283, 5255327, 15765981]

約数ペア:

[(1, 15765981), (3, 5255327), (7, 2252283), (11, 1433271), (21, 750761), (33, 477757), (77, 204753), (131, 120351), (231, 68251), (393, 40117), (521, 30261), (917, 17193), (1441, 10941), (1563, 10087), (2751, 5731), (3647, 4323)]