21813499

素因数分解:

${\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1187}}^1$

素因数の和:1274

約数の個数: 16

約数和(自身を含む): 24634368

約数和(自身を除く): 2820869

約数列:

[1, 17, 23, 47, 391, 799, 1081, 1187, 18377, 20179, 27301, 55789, 464117, 948413, 1283147, 21813499]

約数ペア:

[(1, 21813499), (17, 1283147), (23, 948413), (47, 464117), (391, 55789), (799, 27301), (1081, 20179), (1187, 18377)]