21688072

素因数分解:

$2^3\times 7^1\times {\mathrm{241}}^1\times {\mathrm{1607}}^1$

素因数の和:1861

約数の個数: 32

約数和(自身を含む): 46696320

約数和(自身を除く): 25008248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 241, 482, 964, 1607, 1687, 1928, 3214, 3374, 6428, 6748, 11249, 12856, 13496, 22498, 44996, 89992, 387287, 774574, 1549148, 2711009, 3098296, 5422018, 10844036, 21688072]

約数ペア:

[(1, 21688072), (2, 10844036), (4, 5422018), (7, 3098296), (8, 2711009), (14, 1549148), (28, 774574), (56, 387287), (241, 89992), (482, 44996), (964, 22498), (1607, 13496), (1687, 12856), (1928, 11249), (3214, 6748), (3374, 6428)]