21872572

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{79}}^1\times {\mathrm{3643}}^1$

素因数の和:3745

約数の個数: 24

約数和(自身を含む): 40812800

約数和(自身を除く): 18940228

約数列:

[1, 2, 4, 19, 38, 76, 79, 158, 316, 1501, 3002, 3643, 6004, 7286, 14572, 69217, 138434, 276868, 287797, 575594, 1151188, 5468143, 10936286, 21872572]

約数ペア:

[(1, 21872572), (2, 10936286), (4, 5468143), (19, 1151188), (38, 575594), (76, 287797), (79, 276868), (158, 138434), (316, 69217), (1501, 14572), (3002, 7286), (3643, 6004)]