257193937

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{13523}}^1$

素因数の和:13573

約数の個数: 32

約数和(自身を含む): 363525120

約数和(自身を除く): 106331183

約数列:

[1, 7, 11, 13, 19, 77, 91, 133, 143, 209, 247, 1001, 1463, 1729, 2717, 13523, 19019, 94661, 148753, 175799, 256937, 1041271, 1230593, 1798559, 1933789, 2826307, 3340181, 13536523, 19784149, 23381267, 36741991, 257193937]

約数ペア:

[(1, 257193937), (7, 36741991), (11, 23381267), (13, 19784149), (19, 13536523), (77, 3340181), (91, 2826307), (133, 1933789), (143, 1798559), (209, 1230593), (247, 1041271), (1001, 256937), (1463, 175799), (1729, 148753), (2717, 94661), (13523, 19019)]