21529312

素因数分解:

$2^5\times 7^1\times {\mathrm{223}}^1\times {\mathrm{431}}^1$

素因数の和:671

約数の個数: 48

約数和(自身を含む): 48771072

約数和(自身を除く): 27241760

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 223, 224, 431, 446, 862, 892, 1561, 1724, 1784, 3017, 3122, 3448, 3568, 6034, 6244, 6896, 7136, 12068, 12488, 13792, 24136, 24976, 48272, 49952, 96113, 96544, 192226, 384452, 672791, 768904, 1345582, 1537808, 2691164, 3075616, 5382328, 10764656, 21529312]

約数ペア:

[(1, 21529312), (2, 10764656), (4, 5382328), (7, 3075616), (8, 2691164), (14, 1537808), (16, 1345582), (28, 768904), (32, 672791), (56, 384452), (112, 192226), (223, 96544), (224, 96113), (431, 49952), (446, 48272), (862, 24976), (892, 24136), (1561, 13792), (1724, 12488), (1784, 12068), (3017, 7136), (3122, 6896), (3448, 6244), (3568, 6034)]