8981245

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{19739}}^1$

素因数の和:19764

約数の個数: 16

約数和(自身を含む): 13265280

約数和(自身を除く): 4284035

約数列:

[1, 5, 7, 13, 35, 65, 91, 455, 19739, 98695, 138173, 256607, 690865, 1283035, 1796249, 8981245]

約数ペア:

[(1, 8981245), (5, 1796249), (7, 1283035), (13, 690865), (35, 256607), (65, 138173), (91, 98695), (455, 19739)]