20761775487

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{251}}^1\times {\mathrm{540629}}^1$

素因数の和:540903

約数の個数: 24

約数和(自身を含む): 31879869840

約数和(自身を除く): 11118094353

約数列:

[1, 3, 9, 17, 51, 153, 251, 753, 2259, 4267, 12801, 38403, 540629, 1621887, 4865661, 9190693, 27572079, 82716237, 135697879, 407093637, 1221280911, 2306863943, 6920591829, 20761775487]

約数ペア:

[(1, 20761775487), (3, 6920591829), (9, 2306863943), (17, 1221280911), (51, 407093637), (153, 135697879), (251, 82716237), (753, 27572079), (2259, 9190693), (4267, 4865661), (12801, 1621887), (38403, 540629)]