20929888

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{419}}^1$

素因数の和:659

約数の個数: 48

約数和(自身を含む): 47416320

約数和(自身を除く): 26486432

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 419, 446, 838, 892, 1561, 1676, 1784, 2933, 3122, 3352, 3568, 5866, 6244, 6704, 7136, 11732, 12488, 13408, 23464, 24976, 46928, 49952, 93437, 93856, 186874, 373748, 654059, 747496, 1308118, 1494992, 2616236, 2989984, 5232472, 10464944, 20929888]

約数ペア:

[(1, 20929888), (2, 10464944), (4, 5232472), (7, 2989984), (8, 2616236), (14, 1494992), (16, 1308118), (28, 747496), (32, 654059), (56, 373748), (112, 186874), (223, 93856), (224, 93437), (419, 49952), (446, 46928), (838, 24976), (892, 23464), (1561, 13408), (1676, 12488), (1784, 11732), (2933, 7136), (3122, 6704), (3352, 6244), (3568, 5866)]