209972253

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{197}}^1\times {\mathrm{20899}}^1$

素因数の和:21116

約数の個数: 16

約数和(自身を含む): 297950400

約数和(自身を除く): 87978147

約数列:

[1, 3, 17, 51, 197, 591, 3349, 10047, 20899, 62697, 355283, 1065849, 4117103, 12351309, 69990751, 209972253]

約数ペア:

[(1, 209972253), (3, 69990751), (17, 12351309), (51, 4117103), (197, 1065849), (591, 355283), (3349, 62697), (10047, 20899)]