19560789

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{131}}^1\times {\mathrm{353}}^1$

素因数の和:537

約数の個数: 24

約数和(自身を含む): 29158272

約数和(自身を除く): 9597483

約数列:

[1, 3, 9, 47, 131, 141, 353, 393, 423, 1059, 1179, 3177, 6157, 16591, 18471, 46243, 49773, 55413, 138729, 149319, 416187, 2173421, 6520263, 19560789]

約数ペア:

[(1, 19560789), (3, 6520263), (9, 2173421), (47, 416187), (131, 149319), (141, 138729), (353, 55413), (393, 49773), (423, 46243), (1059, 18471), (1179, 16591), (3177, 6157)]