21421754

素因数分解:

$2^1\times {\mathrm{47}}^1\times {\mathrm{281}}^1\times {\mathrm{811}}^1$

素因数の和:1141

約数の個数: 16

約数和(自身を含む): 32973696

約数和(自身を除く): 11551942

約数列:

[1, 2, 47, 94, 281, 562, 811, 1622, 13207, 26414, 38117, 76234, 227891, 455782, 10710877, 21421754]

約数ペア:

[(1, 21421754), (2, 10710877), (47, 455782), (94, 227891), (281, 76234), (562, 38117), (811, 26414), (1622, 13207)]