21259084

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3001}}^1$

素因数の和:3046

約数の個数: 48

約数和(自身を含む): 48416256

約数和(自身を除く): 27157172

約数列:

[1, 2, 4, 7, 11, 14, 22, 23, 28, 44, 46, 77, 92, 154, 161, 253, 308, 322, 506, 644, 1012, 1771, 3001, 3542, 6002, 7084, 12004, 21007, 33011, 42014, 66022, 69023, 84028, 132044, 138046, 231077, 276092, 462154, 483161, 759253, 924308, 966322, 1518506, 1932644, 3037012, 5314771, 10629542, 21259084]

約数ペア:

[(1, 21259084), (2, 10629542), (4, 5314771), (7, 3037012), (11, 1932644), (14, 1518506), (22, 966322), (23, 924308), (28, 759253), (44, 483161), (46, 462154), (77, 276092), (92, 231077), (154, 138046), (161, 132044), (253, 84028), (308, 69023), (322, 66022), (506, 42014), (644, 33011), (1012, 21007), (1771, 12004), (3001, 7084), (3542, 6002)]