206505999

素因数分解:

$3^2\times 7^1\times {\mathrm{467}}^1\times {\mathrm{7019}}^1$

素因数の和:7499

約数の個数: 24

約数和(自身を含む): 341677440

約数和(自身を除く): 135171441

約数列:

[1, 3, 7, 9, 21, 63, 467, 1401, 3269, 4203, 7019, 9807, 21057, 29421, 49133, 63171, 147399, 442197, 3277873, 9833619, 22945111, 29500857, 68835333, 206505999]

約数ペア:

[(1, 206505999), (3, 68835333), (7, 29500857), (9, 22945111), (21, 9833619), (63, 3277873), (467, 442197), (1401, 147399), (3269, 63171), (4203, 49133), (7019, 29421), (9807, 21057)]