21122864

素因数分解:

$2^4\times 7^1\times {\mathrm{113}}^1\times {\mathrm{1669}}^1$

素因数の和:1797

約数の個数: 40

約数和(自身を含む): 47214240

約数和(自身を除く): 26091376

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 113, 226, 452, 791, 904, 1582, 1669, 1808, 3164, 3338, 6328, 6676, 11683, 12656, 13352, 23366, 26704, 46732, 93464, 186928, 188597, 377194, 754388, 1320179, 1508776, 2640358, 3017552, 5280716, 10561432, 21122864]

約数ペア:

[(1, 21122864), (2, 10561432), (4, 5280716), (7, 3017552), (8, 2640358), (14, 1508776), (16, 1320179), (28, 754388), (56, 377194), (112, 188597), (113, 186928), (226, 93464), (452, 46732), (791, 26704), (904, 23366), (1582, 13352), (1669, 12656), (1808, 11683), (3164, 6676), (3338, 6328)]