25987199

素因数分解:

$7^2\times {\mathrm{59}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:263

約数の個数: 24

約数和(自身を含む): 31395600

約数和(自身を除く): 5408401

約数列:

[1, 7, 49, 59, 89, 101, 413, 623, 707, 2891, 4361, 4949, 5251, 5959, 8989, 36757, 41713, 62923, 257299, 291991, 440461, 530351, 3712457, 25987199]

約数ペア:

[(1, 25987199), (7, 3712457), (49, 530351), (59, 440461), (89, 291991), (101, 257299), (413, 62923), (623, 41713), (707, 36757), (2891, 8989), (4361, 5959), (4949, 5251)]