21883407

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{1129}}^1$

素因数の和:1223

約数の個数: 32

約数和(自身を含む): 36449280

約数和(自身を除く): 14565873

約数列:

[1, 3, 7, 13, 21, 39, 71, 91, 213, 273, 497, 923, 1129, 1491, 2769, 3387, 6461, 7903, 14677, 19383, 23709, 44031, 80159, 102739, 240477, 308217, 561113, 1042067, 1683339, 3126201, 7294469, 21883407]

約数ペア:

[(1, 21883407), (3, 7294469), (7, 3126201), (13, 1683339), (21, 1042067), (39, 561113), (71, 308217), (91, 240477), (213, 102739), (273, 80159), (497, 44031), (923, 23709), (1129, 19383), (1491, 14677), (2769, 7903), (3387, 6461)]