199629521

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{3001}}^1$

素因数の和:3081

約数の個数: 32

約数和(自身を含む): 266289408

約数和(自身を除く): 66659887

約数列:

[1, 7, 13, 17, 43, 91, 119, 221, 301, 559, 731, 1547, 3001, 3913, 5117, 9503, 21007, 39013, 51017, 66521, 129043, 273091, 357119, 663221, 903301, 1677559, 2193731, 4642547, 11742913, 15356117, 28518503, 199629521]

約数ペア:

[(1, 199629521), (7, 28518503), (13, 15356117), (17, 11742913), (43, 4642547), (91, 2193731), (119, 1677559), (221, 903301), (301, 663221), (559, 357119), (731, 273091), (1547, 129043), (3001, 66521), (3913, 51017), (5117, 39013), (9503, 21007)]