21804848

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{104831}}^1$

素因数の和:104852

約数の個数: 20

約数和(自身を含む): 45497088

約数和(自身を除く): 23692240

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 104831, 209662, 419324, 838648, 1362803, 1677296, 2725606, 5451212, 10902424, 21804848]

約数ペア:

[(1, 21804848), (2, 10902424), (4, 5451212), (8, 2725606), (13, 1677296), (16, 1362803), (26, 838648), (52, 419324), (104, 209662), (208, 104831)]