221310551

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{66841}}^1$

素因数の和:66902

約数の個数: 16

約数和(自身を含む): 282340608

約数和(自身を除く): 61030057

約数列:

[1, 7, 11, 43, 77, 301, 473, 3311, 66841, 467887, 735251, 2874163, 5146757, 20119141, 31615793, 221310551]

約数ペア:

[(1, 221310551), (7, 31615793), (11, 20119141), (43, 5146757), (77, 2874163), (301, 735251), (473, 467887), (3311, 66841)]