21879544

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{160879}}^1$

素因数の和:160902

約数の個数: 16

約数和(自身を含む): 43437600

約数和(自身を除く): 21558056

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 160879, 321758, 643516, 1287032, 2734943, 5469886, 10939772, 21879544]

約数ペア:

[(1, 21879544), (2, 10939772), (4, 5469886), (8, 2734943), (17, 1287032), (34, 643516), (68, 321758), (136, 160879)]