61556257

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{20123}}^1$

素因数の和:20172

約数の個数: 16

約数和(自身を含む): 77276160

約数和(自身を除く): 15719903

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 20123, 140861, 382337, 462829, 2676359, 3239803, 8793751, 61556257]

約数ペア:

[(1, 61556257), (7, 8793751), (19, 3239803), (23, 2676359), (133, 462829), (161, 382337), (437, 140861), (3059, 20123)]