291228236

素因数分解:

$2^2\times {\mathrm{13}}^2\times {\mathrm{430811}}^1$

素因数の和:430841

約数の個数: 18

約数和(自身を含む): 551870172

約数和(自身を除く): 260641936

約数列:

[1, 2, 4, 13, 26, 52, 169, 338, 676, 430811, 861622, 1723244, 5600543, 11201086, 22402172, 72807059, 145614118, 291228236]

約数ペア:

[(1, 291228236), (2, 145614118), (4, 72807059), (13, 22402172), (26, 11201086), (52, 5600543), (169, 1723244), (338, 861622), (676, 430811)]