21661407

素因数分解:

$3^2\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{1249}}^1$

素因数の和:1343

約数の個数: 24

約数和(自身を含む): 32760000

約数和(自身を除く): 11098593

約数列:

[1, 3, 9, 41, 47, 123, 141, 369, 423, 1249, 1927, 3747, 5781, 11241, 17343, 51209, 58703, 153627, 176109, 460881, 528327, 2406823, 7220469, 21661407]

約数ペア:

[(1, 21661407), (3, 7220469), (9, 2406823), (41, 528327), (47, 460881), (123, 176109), (141, 153627), (369, 58703), (423, 51209), (1249, 17343), (1927, 11241), (3747, 5781)]