21369272

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{157127}}^1$

素因数の和:157150

約数の個数: 16

約数和(自身を含む): 42424560

約数和(自身を除く): 21055288

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 157127, 314254, 628508, 1257016, 2671159, 5342318, 10684636, 21369272]

約数ペア:

[(1, 21369272), (2, 10684636), (4, 5342318), (8, 2671159), (17, 1257016), (34, 628508), (68, 314254), (136, 157127)]