21301168

素因数分解:

$2^4\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4423}}^1$

素因数の和:4481

約数の個数: 40

約数和(自身を含む): 48274688

約数和(自身を除く): 26973520

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 43, 56, 86, 112, 172, 301, 344, 602, 688, 1204, 2408, 4423, 4816, 8846, 17692, 30961, 35384, 61922, 70768, 123844, 190189, 247688, 380378, 495376, 760756, 1331323, 1521512, 2662646, 3043024, 5325292, 10650584, 21301168]

約数ペア:

[(1, 21301168), (2, 10650584), (4, 5325292), (7, 3043024), (8, 2662646), (14, 1521512), (16, 1331323), (28, 760756), (43, 495376), (56, 380378), (86, 247688), (112, 190189), (172, 123844), (301, 70768), (344, 61922), (602, 35384), (688, 30961), (1204, 17692), (2408, 8846), (4423, 4816)]