20696905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{4127}}^1$

素因数の和:4208

約数の個数: 16

約数和(自身を含む): 26749440

約数和(自身を除く): 6052535

約数列:

[1, 5, 17, 59, 85, 295, 1003, 4127, 5015, 20635, 70159, 243493, 350795, 1217465, 4139381, 20696905]

約数ペア:

[(1, 20696905), (5, 4139381), (17, 1217465), (59, 350795), (85, 243493), (295, 70159), (1003, 20635), (4127, 5015)]