21453572

素因数分解:

$2^2\times 7^2\times {\mathrm{23}}^1\times {\mathrm{4759}}^1$

素因数の和:4800

約数の個数: 36

約数和(自身を含む): 45581760

約数和(自身を除く): 24128188

約数列:

[1, 2, 4, 7, 14, 23, 28, 46, 49, 92, 98, 161, 196, 322, 644, 1127, 2254, 4508, 4759, 9518, 19036, 33313, 66626, 109457, 133252, 218914, 233191, 437828, 466382, 766199, 932764, 1532398, 3064796, 5363393, 10726786, 21453572]

約数ペア:

[(1, 21453572), (2, 10726786), (4, 5363393), (7, 3064796), (14, 1532398), (23, 932764), (28, 766199), (46, 466382), (49, 437828), (92, 233191), (98, 218914), (161, 133252), (196, 109457), (322, 66626), (644, 33313), (1127, 19036), (2254, 9518), (4508, 4759)]