201991451

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{563}}^1\times {\mathrm{821}}^1$

素因数の和:1426

約数の個数: 16

約数和(自身を含む): 222531840

約数和(自身を除く): 20540389

約数列:

[1, 19, 23, 437, 563, 821, 10697, 12949, 15599, 18883, 246031, 358777, 462223, 8782237, 10631129, 201991451]

約数ペア:

[(1, 201991451), (19, 10631129), (23, 8782237), (437, 462223), (563, 358777), (821, 246031), (10697, 18883), (12949, 15599)]