21367191

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^2\times {\mathrm{223}}^1$

素因数の和:327

約数の個数: 24

約数和(自身を含む): 30876160

約数和(自身を除く): 9508969

約数列:

[1, 3, 19, 41, 57, 123, 223, 669, 779, 1681, 2337, 4237, 5043, 9143, 12711, 27429, 31939, 95817, 173717, 374863, 521151, 1124589, 7122397, 21367191]

約数ペア:

[(1, 21367191), (3, 7122397), (19, 1124589), (41, 521151), (57, 374863), (123, 173717), (223, 95817), (669, 31939), (779, 27429), (1681, 12711), (2337, 9143), (4237, 5043)]