21121027

素因数分解:

${\mathrm{19}}^2\times {\mathrm{41}}^1\times {\mathrm{1427}}^1$

素因数の和:1506

約数の個数: 12

約数和(自身を含む): 22850856

約数和(自身を除く): 1729829

約数列:

[1, 19, 41, 361, 779, 1427, 14801, 27113, 58507, 515147, 1111633, 21121027]

約数ペア:

[(1, 21121027), (19, 1111633), (41, 515147), (361, 58507), (779, 27113), (1427, 14801)]