19779551

素因数分解:

${\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2\times {\mathrm{293}}^1$

素因数の和:359

約数の個数: 24

約数和(自身を含む): 24195024

約数和(自身を除く): 4415473

約数列:

[1, 11, 17, 19, 187, 209, 293, 323, 361, 3223, 3553, 3971, 4981, 5567, 6137, 54791, 61237, 67507, 94639, 105773, 1041029, 1163503, 1798141, 19779551]

約数ペア:

[(1, 19779551), (11, 1798141), (17, 1163503), (19, 1041029), (187, 105773), (209, 94639), (293, 67507), (323, 61237), (361, 54791), (3223, 6137), (3553, 5567), (3971, 4981)]