20156194917

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{47}}^1\times {\mathrm{25771}}^1$

素因数の和:25910

約数の個数: 36

約数和(自身を含む): 30442711104

約数和(自身を除く): 10286516187

約数列:

[1, 3, 9, 43, 47, 129, 141, 387, 423, 1849, 2021, 5547, 6063, 16641, 18189, 25771, 77313, 86903, 231939, 260709, 782127, 1108153, 1211237, 3324459, 3633711, 9973377, 10901133, 47650579, 52083191, 142951737, 156249573, 428855211, 468748719, 2239577213, 6718731639, 20156194917]

約数ペア:

[(1, 20156194917), (3, 6718731639), (9, 2239577213), (43, 468748719), (47, 428855211), (129, 156249573), (141, 142951737), (387, 52083191), (423, 47650579), (1849, 10901133), (2021, 9973377), (5547, 3633711), (6063, 3324459), (16641, 1211237), (18189, 1108153), (25771, 782127), (77313, 260709), (86903, 231939)]