823642407

素因数分解:

$3^2\times 7^1\times {\mathrm{631}}^1\times {\mathrm{20719}}^1$

素因数の和:21363

約数の個数: 24

約数和(自身を含む): 1361884160

約数和(自身を除く): 538241753

約数列:

[1, 3, 7, 9, 21, 63, 631, 1893, 4417, 5679, 13251, 20719, 39753, 62157, 145033, 186471, 435099, 1305297, 13073689, 39221067, 91515823, 117663201, 274547469, 823642407]

約数ペア:

[(1, 823642407), (3, 274547469), (7, 117663201), (9, 91515823), (21, 39221067), (63, 13073689), (631, 1305297), (1893, 435099), (4417, 186471), (5679, 145033), (13251, 62157), (20719, 39753)]