21270177

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{173}}^1\times {\mathrm{719}}^1$

素因数の和:917

約数の個数: 24

約数和(自身を含む): 32572800

約数和(自身を除く): 11302623

約数列:

[1, 3, 9, 19, 57, 171, 173, 519, 719, 1557, 2157, 3287, 6471, 9861, 13661, 29583, 40983, 122949, 124387, 373161, 1119483, 2363353, 7090059, 21270177]

約数ペア:

[(1, 21270177), (3, 7090059), (9, 2363353), (19, 1119483), (57, 373161), (171, 124387), (173, 122949), (519, 40983), (719, 29583), (1557, 13661), (2157, 9861), (3287, 6471)]