20996957513

素因数分解:

$7^2\times {\mathrm{19}}^1\times {\mathrm{22553123}}^1$

素因数の和:22553156

約数の個数: 12

約数和(自身を含む): 25710561360

約数和(自身を除く): 4713603847

約数列:

[1, 7, 19, 49, 133, 931, 22553123, 157871861, 428509337, 1105103027, 2999565359, 20996957513]

約数ペア:

[(1, 20996957513), (7, 2999565359), (19, 1105103027), (49, 428509337), (133, 157871861), (931, 22553123)]