20975214

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{268913}}^1$

素因数の和:268931

約数の個数: 16

約数和(自身を含む): 45177552

約数和(自身を除く): 24202338

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 268913, 537826, 806739, 1613478, 3495869, 6991738, 10487607, 20975214]

約数ペア:

[(1, 20975214), (2, 10487607), (3, 6991738), (6, 3495869), (13, 1613478), (26, 806739), (39, 537826), (78, 268913)]