19690892

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{378671}}^1$

素因数の和:378688

約数の個数: 12

約数和(自身を含む): 37109856

約数和(自身を除く): 17418964

約数列:

[1, 2, 4, 13, 26, 52, 378671, 757342, 1514684, 4922723, 9845446, 19690892]

約数ペア:

[(1, 19690892), (2, 9845446), (4, 4922723), (13, 1514684), (26, 757342), (52, 378671)]