208520221

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{23623}}^1$

素因数の和:23740

約数の個数: 16

約数和(自身を含む): 259297024

約数和(自身を除く): 50776803

約数列:

[1, 7, 13, 91, 97, 679, 1261, 8827, 23623, 165361, 307099, 2149693, 2291431, 16040017, 29788603, 208520221]

約数ペア:

[(1, 208520221), (7, 29788603), (13, 16040017), (91, 2291431), (97, 2149693), (679, 307099), (1261, 165361), (8827, 23623)]