21529981

素因数分解:

${\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{131}}^1\times {\mathrm{223}}^1$

素因数の和:432

約数の個数: 16

約数和(自身を含む): 24127488

約数和(自身を除く): 2597507

約数列:

[1, 11, 67, 131, 223, 737, 1441, 2453, 8777, 14941, 29213, 96547, 164351, 321343, 1957271, 21529981]

約数ペア:

[(1, 21529981), (11, 1957271), (67, 321343), (131, 164351), (223, 96547), (737, 29213), (1441, 14941), (2453, 8777)]