18621519

素因数分解:

$3^1\times 7^2\times {\mathrm{131}}^1\times {\mathrm{967}}^1$

素因数の和:1115

約数の個数: 24

約数和(自身を含む): 29132928

約数和(自身を除く): 10511409

約数列:

[1, 3, 7, 21, 49, 131, 147, 393, 917, 967, 2751, 2901, 6419, 6769, 19257, 20307, 47383, 126677, 142149, 380031, 886739, 2660217, 6207173, 18621519]

約数ペア:

[(1, 18621519), (3, 6207173), (7, 2660217), (21, 886739), (49, 380031), (131, 142149), (147, 126677), (393, 47383), (917, 20307), (967, 19257), (2751, 6769), (2901, 6419)]