21281694

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{47}}^1\times {\mathrm{10781}}^1$

素因数の和:10840

約数の個数: 32

約数和(自身を含む): 49683456

約数和(自身を除く): 28401762

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 47, 94, 141, 282, 329, 658, 987, 1974, 10781, 21562, 32343, 64686, 75467, 150934, 226401, 452802, 506707, 1013414, 1520121, 3040242, 3546949, 7093898, 10640847, 21281694]

約数ペア:

[(1, 21281694), (2, 10640847), (3, 7093898), (6, 3546949), (7, 3040242), (14, 1520121), (21, 1013414), (42, 506707), (47, 452802), (94, 226401), (141, 150934), (282, 75467), (329, 64686), (658, 32343), (987, 21562), (1974, 10781)]