21508088

素因数分解:

$2^3\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1607}}^1$

素因数の和:1859

約数の個数: 32

約数和(自身を含む): 46310400

約数和(自身を除く): 24802312

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 239, 478, 956, 1607, 1673, 1912, 3214, 3346, 6428, 6692, 11249, 12856, 13384, 22498, 44996, 89992, 384073, 768146, 1536292, 2688511, 3072584, 5377022, 10754044, 21508088]

約数ペア:

[(1, 21508088), (2, 10754044), (4, 5377022), (7, 3072584), (8, 2688511), (14, 1536292), (28, 768146), (56, 384073), (239, 89992), (478, 44996), (956, 22498), (1607, 13384), (1673, 12856), (1912, 11249), (3214, 6692), (3346, 6428)]