21000798722

素因数分解:

$2^1\times {\mathrm{419}}^1\times {\mathrm{571}}^1\times {\mathrm{43889}}^1$

素因数の和:44881

約数の個数: 16

約数和(自身を含む): 31632400800

約数和(自身を除く): 10631602078

約数列:

[1, 2, 419, 571, 838, 1142, 43889, 87778, 239249, 478498, 18389491, 25060619, 36778982, 50121238, 10500399361, 21000798722]

約数ペア:

[(1, 21000798722), (2, 10500399361), (419, 50121238), (571, 36778982), (838, 25060619), (1142, 18389491), (43889, 478498), (87778, 239249)]