20456943

素因数分解:

$3^1\times {\mathrm{13}}^2\times {\mathrm{157}}^1\times {\mathrm{257}}^1$

素因数の和:443

約数の個数: 24

約数和(自身を含む): 29839248

約数和(自身を除く): 9382305

約数列:

[1, 3, 13, 39, 157, 169, 257, 471, 507, 771, 2041, 3341, 6123, 10023, 26533, 40349, 43433, 79599, 121047, 130299, 524537, 1573611, 6818981, 20456943]

約数ペア:

[(1, 20456943), (3, 6818981), (13, 1573611), (39, 524537), (157, 130299), (169, 121047), (257, 79599), (471, 43433), (507, 40349), (771, 26533), (2041, 10023), (3341, 6123)]