81280043

素因数分解:

${\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{1489}}^1$

素因数の和:1551

約数の個数: 24

約数和(自身を含む): 98161200

約数和(自身を除く): 16881157

約数列:

[1, 13, 17, 19, 169, 221, 247, 323, 1489, 2873, 3211, 4199, 19357, 25313, 28291, 54587, 251641, 329069, 367783, 480947, 4277897, 4781179, 6252311, 81280043]

約数ペア:

[(1, 81280043), (13, 6252311), (17, 4781179), (19, 4277897), (169, 480947), (221, 367783), (247, 329069), (323, 251641), (1489, 54587), (2873, 28291), (3211, 25313), (4199, 19357)]