19208553

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{991}}^1$

素因数の和:1085

約数の個数: 32

約数和(自身を含む): 31997952

約数和(自身を除く): 12789399

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 991, 1491, 2769, 2973, 6461, 6937, 12883, 19383, 20811, 38649, 70361, 90181, 211083, 270543, 492527, 914693, 1477581, 2744079, 6402851, 19208553]

約数ペア:

[(1, 19208553), (3, 6402851), (7, 2744079), (13, 1477581), (21, 914693), (39, 492527), (71, 270543), (91, 211083), (213, 90181), (273, 70361), (497, 38649), (923, 20811), (991, 19383), (1491, 12883), (2769, 6937), (2973, 6461)]