20974865478

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499401559}}^1$

素因数の和:499401571

約数の個数: 16

約数和(自身を含む): 47942549760

約数和(自身を除く): 26967684282

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499401559, 998803118, 1498204677, 2996409354, 3495810913, 6991621826, 10487432739, 20974865478]

約数ペア:

[(1, 20974865478), (2, 10487432739), (3, 6991621826), (6, 3495810913), (7, 2996409354), (14, 1498204677), (21, 998803118), (42, 499401559)]