31681338

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{406171}}^1$

素因数の和:406189

約数の個数: 16

約数和(自身を含む): 68236896

約数和(自身を除く): 36555558

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 406171, 812342, 1218513, 2437026, 5280223, 10560446, 15840669, 31681338]

約数ペア:

[(1, 31681338), (2, 15840669), (3, 10560446), (6, 5280223), (13, 2437026), (26, 1218513), (39, 812342), (78, 406171)]