19980935138

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{223}}^1\times {\mathrm{1210819}}^1$

素因数の和:1211081

約数の個数: 16

約数和(自身を含む): 30919499520

約数和(自身を除く): 10938564382

約数列:

[1, 2, 37, 74, 223, 446, 8251, 16502, 1210819, 2421638, 44800303, 89600606, 270012637, 540025274, 9990467569, 19980935138]

約数ペア:

[(1, 19980935138), (2, 9990467569), (37, 540025274), (74, 270012637), (223, 89600606), (446, 44800303), (8251, 2421638), (16502, 1210819)]