19348385

素因数分解:

$5^1\times 7^2\times {\mathrm{151}}^1\times {\mathrm{523}}^1$

素因数の和:693

約数の個数: 24

約数和(自身を含む): 27239616

約数和(自身を除く): 7891231

約数列:

[1, 5, 7, 35, 49, 151, 245, 523, 755, 1057, 2615, 3661, 5285, 7399, 18305, 25627, 36995, 78973, 128135, 394865, 552811, 2764055, 3869677, 19348385]

約数ペア:

[(1, 19348385), (5, 3869677), (7, 2764055), (35, 552811), (49, 394865), (151, 128135), (245, 78973), (523, 36995), (755, 25627), (1057, 18305), (2615, 7399), (3661, 5285)]