21567767

素因数分解:

${\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{1361}}^1$

素因数の和:1450

約数の個数: 16

約数和(自身を含む): 24712128

約数和(自身を除く): 3144361

約数列:

[1, 13, 23, 53, 299, 689, 1219, 1361, 15847, 17693, 31303, 72133, 406939, 937729, 1659059, 21567767]

約数ペア:

[(1, 21567767), (13, 1659059), (23, 937729), (53, 406939), (299, 72133), (689, 31303), (1219, 17693), (1361, 15847)]