21510244

素因数分解:

$2^2\times 7^1\times {\mathrm{23}}^1\times {\mathrm{127}}^1\times {\mathrm{263}}^1$

素因数の和:424

約数の個数: 48

約数和(自身を含む): 45416448

約数和(自身を除く): 23906204

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 92, 127, 161, 254, 263, 322, 508, 526, 644, 889, 1052, 1778, 1841, 2921, 3556, 3682, 5842, 6049, 7364, 11684, 12098, 20447, 24196, 33401, 40894, 42343, 66802, 81788, 84686, 133604, 169372, 233807, 467614, 768223, 935228, 1536446, 3072892, 5377561, 10755122, 21510244]

約数ペア:

[(1, 21510244), (2, 10755122), (4, 5377561), (7, 3072892), (14, 1536446), (23, 935228), (28, 768223), (46, 467614), (92, 233807), (127, 169372), (161, 133604), (254, 84686), (263, 81788), (322, 66802), (508, 42343), (526, 40894), (644, 33401), (889, 24196), (1052, 20447), (1778, 12098), (1841, 11684), (2921, 7364), (3556, 6049), (3682, 5842)]