20980498

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{136237}}^1$

素因数の和:136257

約数の個数: 16

約数和(自身を含む): 39236544

約数和(自身を除く): 18256046

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 136237, 272474, 953659, 1498607, 1907318, 2997214, 10490249, 20980498]

約数ペア:

[(1, 20980498), (2, 10490249), (7, 2997214), (11, 1907318), (14, 1498607), (22, 953659), (77, 272474), (154, 136237)]