20871344

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{100343}}^1$

素因数の和:100364

約数の個数: 20

約数和(自身を含む): 43549296

約数和(自身を除く): 22677952

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 100343, 200686, 401372, 802744, 1304459, 1605488, 2608918, 5217836, 10435672, 20871344]

約数ペア:

[(1, 20871344), (2, 10435672), (4, 5217836), (8, 2608918), (13, 1605488), (16, 1304459), (26, 802744), (52, 401372), (104, 200686), (208, 100343)]