21345940

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{167}}^1$

素因数の和:277

約数の個数: 96

約数和(自身を含む): 56899584

約数和(自身を除く): 35553644

約数列:

[1, 2, 4, 5, 7, 10, 11, 14, 20, 22, 28, 35, 44, 55, 70, 77, 83, 110, 140, 154, 166, 167, 220, 308, 332, 334, 385, 415, 581, 668, 770, 830, 835, 913, 1162, 1169, 1540, 1660, 1670, 1826, 1837, 2324, 2338, 2905, 3340, 3652, 3674, 4565, 4676, 5810, 5845, 6391, 7348, 9130, 9185, 11620, 11690, 12782, 12859, 13861, 18260, 18370, 23380, 25564, 25718, 27722, 31955, 36740, 51436, 55444, 63910, 64295, 69305, 97027, 127820, 128590, 138610, 152471, 194054, 257180, 277220, 304942, 388108, 485135, 609884, 762355, 970270, 1067297, 1524710, 1940540, 2134594, 3049420, 4269188, 5336485, 10672970, 21345940]

約数ペア:

[(1, 21345940), (2, 10672970), (4, 5336485), (5, 4269188), (7, 3049420), (10, 2134594), (11, 1940540), (14, 1524710), (20, 1067297), (22, 970270), (28, 762355), (35, 609884), (44, 485135), (55, 388108), (70, 304942), (77, 277220), (83, 257180), (110, 194054), (140, 152471), (154, 138610), (166, 128590), (167, 127820), (220, 97027), (308, 69305), (332, 64295), (334, 63910), (385, 55444), (415, 51436), (581, 36740), (668, 31955), (770, 27722), (830, 25718), (835, 25564), (913, 23380), (1162, 18370), (1169, 18260), (1540, 13861), (1660, 12859), (1670, 12782), (1826, 11690), (1837, 11620), (2324, 9185), (2338, 9130), (2905, 7348), (3340, 6391), (3652, 5845), (3674, 5810), (4565, 4676)]