21139968

素因数分解:

$2^9\times 3^1\times {\mathrm{13763}}^1$

素因数の和:13784

約数の個数: 40

約数和(自身を含む): 56322288

約数和(自身を除く): 35182320

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 256, 384, 512, 768, 1536, 13763, 27526, 41289, 55052, 82578, 110104, 165156, 220208, 330312, 440416, 660624, 880832, 1321248, 1761664, 2642496, 3523328, 5284992, 7046656, 10569984, 21139968]

約数ペア:

[(1, 21139968), (2, 10569984), (3, 7046656), (4, 5284992), (6, 3523328), (8, 2642496), (12, 1761664), (16, 1321248), (24, 880832), (32, 660624), (48, 440416), (64, 330312), (96, 220208), (128, 165156), (192, 110104), (256, 82578), (384, 55052), (512, 41289), (768, 27526), (1536, 13763)]