21561708

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{256687}}^1$

素因数の和:256701

約数の個数: 24

約数和(自身を含む): 57498112

約数和(自身を除く): 35936404

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 256687, 513374, 770061, 1026748, 1540122, 1796809, 3080244, 3593618, 5390427, 7187236, 10780854, 21561708]

約数ペア:

[(1, 21561708), (2, 10780854), (3, 7187236), (4, 5390427), (6, 3593618), (7, 3080244), (12, 1796809), (14, 1540122), (21, 1026748), (28, 770061), (42, 513374), (84, 256687)]