19381538

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{283}}^2$

素因数の和:590

約数の個数: 18

約数和(自身を含む): 32068827

約数和(自身を除く): 12687289

約数列:

[1, 2, 11, 22, 121, 242, 283, 566, 3113, 6226, 34243, 68486, 80089, 160178, 880979, 1761958, 9690769, 19381538]

約数ペア:

[(1, 19381538), (2, 9690769), (11, 1761958), (22, 880979), (121, 160178), (242, 80089), (283, 68486), (566, 34243), (3113, 6226)]