19972912

素因数分解:

$2^4\times {\mathrm{157}}^1\times {\mathrm{7951}}^1$

素因数の和:8116

約数の個数: 20

約数和(自身を含む): 38948896

約数和(自身を除く): 18975984

約数列:

[1, 2, 4, 8, 16, 157, 314, 628, 1256, 2512, 7951, 15902, 31804, 63608, 127216, 1248307, 2496614, 4993228, 9986456, 19972912]

約数ペア:

[(1, 19972912), (2, 9986456), (4, 4993228), (8, 2496614), (16, 1248307), (157, 127216), (314, 63608), (628, 31804), (1256, 15902), (2512, 7951)]