28987478

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{89}}^1\times {\mathrm{12527}}^1$

素因数の和:12631

約数の個数: 16

約数和(自身を含む): 47355840

約数和(自身を除く): 18368362

約数列:

[1, 2, 13, 26, 89, 178, 1157, 2314, 12527, 25054, 162851, 325702, 1114903, 2229806, 14493739, 28987478]

約数ペア:

[(1, 28987478), (2, 14493739), (13, 2229806), (26, 1114903), (89, 325702), (178, 162851), (1157, 25054), (2314, 12527)]