21113428

素因数分解:

$2^2\times 7^1\times {\mathrm{193}}^1\times {\mathrm{3907}}^1$

素因数の和:4111

約数の個数: 24

約数和(自身を含む): 42456512

約数和(自身を除く): 21343084

約数列:

[1, 2, 4, 7, 14, 28, 193, 386, 772, 1351, 2702, 3907, 5404, 7814, 15628, 27349, 54698, 109396, 754051, 1508102, 3016204, 5278357, 10556714, 21113428]

約数ペア:

[(1, 21113428), (2, 10556714), (4, 5278357), (7, 3016204), (14, 1508102), (28, 754051), (193, 109396), (386, 54698), (772, 27349), (1351, 15628), (2702, 7814), (3907, 5404)]