27801921

素因数分解:

$3^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{1181}}^1$

素因数の和:1269

約数の個数: 32

約数和(自身を含む): 45388800

約数和(自身を除く): 17586879

約数列:

[1, 3, 7, 19, 21, 57, 59, 133, 177, 399, 413, 1121, 1181, 1239, 3363, 3543, 7847, 8267, 22439, 23541, 24801, 67317, 69679, 157073, 209037, 471219, 487753, 1323901, 1463259, 3971703, 9267307, 27801921]

約数ペア:

[(1, 27801921), (3, 9267307), (7, 3971703), (19, 1463259), (21, 1323901), (57, 487753), (59, 471219), (133, 209037), (177, 157073), (399, 69679), (413, 67317), (1121, 24801), (1181, 23541), (1239, 22439), (3363, 8267), (3543, 7847)]