13199725

素因数分解:

$5^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6857}}^1$

素因数の和:6885

約数の個数: 24

約数和(自身を含む): 20409408

約数和(自身を除く): 7209683

約数列:

[1, 5, 7, 11, 25, 35, 55, 77, 175, 275, 385, 1925, 6857, 34285, 47999, 75427, 171425, 239995, 377135, 527989, 1199975, 1885675, 2639945, 13199725]

約数ペア:

[(1, 13199725), (5, 2639945), (7, 1885675), (11, 1199975), (25, 527989), (35, 377135), (55, 239995), (77, 171425), (175, 75427), (275, 47999), (385, 34285), (1925, 6857)]