21591339

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{151}}^1\times {\mathrm{619}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 36188160

約数和(自身を除く): 14596821

約数列:

[1, 3, 7, 11, 21, 33, 77, 151, 231, 453, 619, 1057, 1661, 1857, 3171, 4333, 4983, 6809, 11627, 12999, 20427, 34881, 47663, 93469, 142989, 280407, 654283, 1028159, 1962849, 3084477, 7197113, 21591339]

約数ペア:

[(1, 21591339), (3, 7197113), (7, 3084477), (11, 1962849), (21, 1028159), (33, 654283), (77, 280407), (151, 142989), (231, 93469), (453, 47663), (619, 34881), (1057, 20427), (1661, 12999), (1857, 11627), (3171, 6809), (4333, 4983)]