8641199

素因数分解:

$7^4\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:148

約数の個数: 20

約数和(自身を含む): 10419720

約数和(自身を除く): 1778521

約数列:

[1, 7, 49, 59, 61, 343, 413, 427, 2401, 2891, 2989, 3599, 20237, 20923, 25193, 141659, 146461, 176351, 1234457, 8641199]

約数ペア:

[(1, 8641199), (7, 1234457), (49, 176351), (59, 146461), (61, 141659), (343, 25193), (413, 20923), (427, 20237), (2401, 3599), (2891, 2989)]