51378131

素因数分解:

$7^1\times {\mathrm{17}}^2\times {\mathrm{109}}^1\times {\mathrm{233}}^1$

素因数の和:383

約数の個数: 24

約数和(自身を含む): 63217440

約数和(自身を除く): 11839309

約数列:

[1, 7, 17, 109, 119, 233, 289, 763, 1631, 1853, 2023, 3961, 12971, 25397, 27727, 31501, 67337, 177779, 220507, 431749, 471359, 3022243, 7339733, 51378131]

約数ペア:

[(1, 51378131), (7, 7339733), (17, 3022243), (109, 471359), (119, 431749), (233, 220507), (289, 177779), (763, 67337), (1631, 31501), (1853, 27727), (2023, 25397), (3961, 12971)]