199974929

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{577}}^1\times {\mathrm{643}}^1$

素因数の和:1245

約数の個数: 24

約数和(自身を含む): 254606688

約数和(自身を除く): 54631759

約数列:

[1, 7, 11, 49, 77, 539, 577, 643, 4039, 4501, 6347, 7073, 28273, 31507, 44429, 49511, 311003, 346577, 371011, 2597077, 4081121, 18179539, 28567847, 199974929]

約数ペア:

[(1, 199974929), (7, 28567847), (11, 18179539), (49, 4081121), (77, 2597077), (539, 371011), (577, 346577), (643, 311003), (4039, 49511), (4501, 44429), (6347, 31507), (7073, 28273)]