21441447

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{173}}^1\times {\mathrm{293}}^1$

素因数の和:519

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 10479897

約数列:

[1, 3, 9, 47, 141, 173, 293, 423, 519, 879, 1557, 2637, 8131, 13771, 24393, 41313, 50689, 73179, 123939, 152067, 456201, 2382383, 7147149, 21441447]

約数ペア:

[(1, 21441447), (3, 7147149), (9, 2382383), (47, 456201), (141, 152067), (173, 123939), (293, 73179), (423, 50689), (519, 41313), (879, 24393), (1557, 13771), (2637, 8131)]