21144318

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{307}}^1\times {\mathrm{883}}^1$

素因数の和:1208

約数の個数: 32

約数和(自身を含む): 45741696

約数和(自身を除く): 24597378

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 307, 614, 883, 921, 1766, 1842, 2649, 3991, 5298, 7982, 11479, 11973, 22958, 23946, 34437, 68874, 271081, 542162, 813243, 1626486, 3524053, 7048106, 10572159, 21144318]

約数ペア:

[(1, 21144318), (2, 10572159), (3, 7048106), (6, 3524053), (13, 1626486), (26, 813243), (39, 542162), (78, 271081), (307, 68874), (614, 34437), (883, 23946), (921, 22958), (1766, 11973), (1842, 11479), (2649, 7982), (3991, 5298)]