21449924

素因数分解:

$2^2\times {\mathrm{139}}^1\times {\mathrm{173}}^1\times {\mathrm{223}}^1$

素因数の和:539

約数の個数: 24

約数和(自身を含む): 38196480

約数和(自身を除く): 16746556

約数列:

[1, 2, 4, 139, 173, 223, 278, 346, 446, 556, 692, 892, 24047, 30997, 38579, 48094, 61994, 77158, 96188, 123988, 154316, 5362481, 10724962, 21449924]

約数ペア:

[(1, 21449924), (2, 10724962), (4, 5362481), (139, 154316), (173, 123988), (223, 96188), (278, 77158), (346, 61994), (446, 48094), (556, 38579), (692, 30997), (892, 24047)]