21370852

素因数分解:

$2^2\times {\mathrm{103}}^1\times {\mathrm{51871}}^1$

素因数の和:51978

約数の個数: 12

約数和(自身を含む): 37762816

約数和(自身を除く): 16391964

約数列:

[1, 2, 4, 103, 206, 412, 51871, 103742, 207484, 5342713, 10685426, 21370852]

約数ペア:

[(1, 21370852), (2, 10685426), (4, 5342713), (103, 207484), (206, 103742), (412, 51871)]