20666572

素因数分解:

$2^2\times {\mathrm{37}}^1\times {\mathrm{311}}^1\times {\mathrm{449}}^1$

素因数の和:801

約数の個数: 24

約数和(自身を含む): 37346400

約数和(自身を除く): 16679828

約数列:

[1, 2, 4, 37, 74, 148, 311, 449, 622, 898, 1244, 1796, 11507, 16613, 23014, 33226, 46028, 66452, 139639, 279278, 558556, 5166643, 10333286, 20666572]

約数ペア:

[(1, 20666572), (2, 10333286), (4, 5166643), (37, 558556), (74, 279278), (148, 139639), (311, 66452), (449, 46028), (622, 33226), (898, 23014), (1244, 16613), (1796, 11507)]