20339781

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{191}}^1\times {\mathrm{461}}^1$

素因数の和:673

約数の個数: 32

約数和(自身を含む): 34062336

約数和(自身を除く): 13722555

約数列:

[1, 3, 7, 11, 21, 33, 77, 191, 231, 461, 573, 1337, 1383, 2101, 3227, 4011, 5071, 6303, 9681, 14707, 15213, 35497, 44121, 88051, 106491, 264153, 616357, 968561, 1849071, 2905683, 6779927, 20339781]

約数ペア:

[(1, 20339781), (3, 6779927), (7, 2905683), (11, 1849071), (21, 968561), (33, 616357), (77, 264153), (191, 106491), (231, 88051), (461, 44121), (573, 35497), (1337, 15213), (1383, 14707), (2101, 9681), (3227, 6303), (4011, 5071)]