21298076

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{313207}}^1$

素因数の和:313228

約数の個数: 12

約数和(自身を含む): 39464208

約数和(自身を除く): 18166132

約数列:

[1, 2, 4, 17, 34, 68, 313207, 626414, 1252828, 5324519, 10649038, 21298076]

約数ペア:

[(1, 21298076), (2, 10649038), (4, 5324519), (17, 1252828), (34, 626414), (68, 313207)]