87439891

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{67}}^1\times {\mathrm{997}}^1$

素因数の和:1099

約数の個数: 32

約数和(自身を含む): 117268992

約数和(自身を除く): 29829101

約数列:

[1, 7, 11, 17, 67, 77, 119, 187, 469, 737, 997, 1139, 1309, 5159, 6979, 7973, 10967, 12529, 16949, 66799, 76769, 87703, 118643, 186439, 467593, 734789, 1135583, 1305073, 5143523, 7949081, 12491413, 87439891]

約数ペア:

[(1, 87439891), (7, 12491413), (11, 7949081), (17, 5143523), (67, 1305073), (77, 1135583), (119, 734789), (187, 467593), (469, 186439), (737, 118643), (997, 87703), (1139, 76769), (1309, 66799), (5159, 16949), (6979, 12529), (7973, 10967)]