21891478

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1559}}^1$

素因数の和:1644

約数の個数: 32

約数和(自身を含む): 40435200

約数和(自身を除く): 18543722

約数列:

[1, 2, 7, 14, 17, 34, 59, 118, 119, 238, 413, 826, 1003, 1559, 2006, 3118, 7021, 10913, 14042, 21826, 26503, 53006, 91981, 183962, 185521, 371042, 643867, 1287734, 1563677, 3127354, 10945739, 21891478]

約数ペア:

[(1, 21891478), (2, 10945739), (7, 3127354), (14, 1563677), (17, 1287734), (34, 643867), (59, 371042), (118, 185521), (119, 183962), (238, 91981), (413, 53006), (826, 26503), (1003, 21826), (1559, 14042), (2006, 10913), (3118, 7021)]