20874178

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{18671}}^1$

素因数の和:18729

約数の個数: 16

約数和(自身を含む): 34505856

約数和(自身を除く): 13631678

約数列:

[1, 2, 13, 26, 43, 86, 559, 1118, 18671, 37342, 242723, 485446, 802853, 1605706, 10437089, 20874178]

約数ペア:

[(1, 20874178), (2, 10437089), (13, 1605706), (26, 802853), (43, 485446), (86, 242723), (559, 37342), (1118, 18671)]