20819994

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{293}}^1\times {\mathrm{911}}^1$

素因数の和:1222

約数の個数: 32

約数和(自身を含む): 45045504

約数和(自身を除く): 24225510

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 293, 586, 879, 911, 1758, 1822, 2733, 3809, 5466, 7618, 11427, 11843, 22854, 23686, 35529, 71058, 266923, 533846, 800769, 1601538, 3469999, 6939998, 10409997, 20819994]

約数ペア:

[(1, 20819994), (2, 10409997), (3, 6939998), (6, 3469999), (13, 1601538), (26, 800769), (39, 533846), (78, 266923), (293, 71058), (586, 35529), (879, 23686), (911, 22854), (1758, 11843), (1822, 11427), (2733, 7618), (3809, 5466)]