21420663

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{38183}}^1$

素因数の和:38214

約数の個数: 16

約数和(自身を含む): 32990976

約数和(自身を除く): 11570313

約数列:

[1, 3, 11, 17, 33, 51, 187, 561, 38183, 114549, 420013, 649111, 1260039, 1947333, 7140221, 21420663]

約数ペア:

[(1, 21420663), (3, 7140221), (11, 1947333), (17, 1260039), (33, 649111), (51, 420013), (187, 114549), (561, 38183)]