890231881

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{4013}}^1$

素因数の和:4141

約数の個数: 32

約数和(自身を含む): 1152949248

約数和(自身を除く): 262717367

約数列:

[1, 7, 11, 43, 67, 77, 301, 469, 473, 737, 2881, 3311, 4013, 5159, 20167, 28091, 31691, 44143, 172559, 221837, 268871, 309001, 1207913, 1882097, 1898149, 2957581, 11561453, 13287043, 20703067, 80930171, 127175983, 890231881]

約数ペア:

[(1, 890231881), (7, 127175983), (11, 80930171), (43, 20703067), (67, 13287043), (77, 11561453), (301, 2957581), (469, 1898149), (473, 1882097), (737, 1207913), (2881, 309001), (3311, 268871), (4013, 221837), (5159, 172559), (20167, 44143), (28091, 31691)]