20741301

素因数分解:

$3^2\times 7^1\times {\mathrm{71}}^1\times {\mathrm{4637}}^1$

素因数の和:4721

約数の個数: 24

約数和(自身を含む): 34729344

約数和(自身を除く): 13988043

約数列:

[1, 3, 7, 9, 21, 63, 71, 213, 497, 639, 1491, 4473, 4637, 13911, 32459, 41733, 97377, 292131, 329227, 987681, 2304589, 2963043, 6913767, 20741301]

約数ペア:

[(1, 20741301), (3, 6913767), (7, 2963043), (9, 2304589), (21, 987681), (63, 329227), (71, 292131), (213, 97377), (497, 41733), (639, 32459), (1491, 13911), (4473, 4637)]