21970238

素因数分解:

$2^1\times {\mathrm{67}}^1\times {\mathrm{127}}^1\times {\mathrm{1291}}^1$

素因数の和:1487

約数の個数: 16

約数和(自身を含む): 33736704

約数和(自身を除く): 11766466

約数列:

[1, 2, 67, 127, 134, 254, 1291, 2582, 8509, 17018, 86497, 163957, 172994, 327914, 10985119, 21970238]

約数ペア:

[(1, 21970238), (2, 10985119), (67, 327914), (127, 172994), (134, 163957), (254, 86497), (1291, 17018), (2582, 8509)]