398889423

素因数分解:

$3^2\times {\mathrm{47}}^1\times {\mathrm{557}}^1\times {\mathrm{1693}}^1$

素因数の和:2303

約数の個数: 24

約数和(自身を含む): 589837248

約数和(自身を除く): 190947825

約数列:

[1, 3, 9, 47, 141, 423, 557, 1671, 1693, 5013, 5079, 15237, 26179, 78537, 79571, 235611, 238713, 716139, 943001, 2829003, 8487009, 44321047, 132963141, 398889423]

約数ペア:

[(1, 398889423), (3, 132963141), (9, 44321047), (47, 8487009), (141, 2829003), (423, 943001), (557, 716139), (1671, 238713), (1693, 235611), (5013, 79571), (5079, 78537), (15237, 26179)]