21111994

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{191}}^1\times {\mathrm{3251}}^1$

素因数の和:3461

約数の個数: 16

約数和(自身を含む): 33716736

約数和(自身を除く): 12604742

約数列:

[1, 2, 17, 34, 191, 382, 3247, 3251, 6494, 6502, 55267, 110534, 620941, 1241882, 10555997, 21111994]

約数ペア:

[(1, 21111994), (2, 10555997), (17, 1241882), (34, 620941), (191, 110534), (382, 55267), (3247, 6502), (3251, 6494)]