21481376

素因数分解:

$2^5\times 7^1\times {\mathrm{41}}^1\times {\mathrm{2339}}^1$

素因数の和:2397

約数の個数: 48

約数和(自身を含む): 49533120

約数和(自身を除く): 28051744

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 41, 56, 82, 112, 164, 224, 287, 328, 574, 656, 1148, 1312, 2296, 2339, 4592, 4678, 9184, 9356, 16373, 18712, 32746, 37424, 65492, 74848, 95899, 130984, 191798, 261968, 383596, 523936, 671293, 767192, 1342586, 1534384, 2685172, 3068768, 5370344, 10740688, 21481376]

約数ペア:

[(1, 21481376), (2, 10740688), (4, 5370344), (7, 3068768), (8, 2685172), (14, 1534384), (16, 1342586), (28, 767192), (32, 671293), (41, 523936), (56, 383596), (82, 261968), (112, 191798), (164, 130984), (224, 95899), (287, 74848), (328, 65492), (574, 37424), (656, 32746), (1148, 18712), (1312, 16373), (2296, 9356), (2339, 9184), (4592, 4678)]