21583320

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{197}}^1$

素因数の和:305

約数の個数: 128

約数和(自身を含む): 71850240

約数和(自身を除く): 50266920

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 20, 22, 24, 30, 33, 40, 44, 55, 60, 66, 83, 88, 110, 120, 132, 165, 166, 197, 220, 249, 264, 330, 332, 394, 415, 440, 498, 591, 660, 664, 788, 830, 913, 985, 996, 1182, 1245, 1320, 1576, 1660, 1826, 1970, 1992, 2167, 2364, 2490, 2739, 2955, 3320, 3652, 3940, 4334, 4565, 4728, 4980, 5478, 5910, 6501, 7304, 7880, 8668, 9130, 9960, 10835, 10956, 11820, 13002, 13695, 16351, 17336, 18260, 21670, 21912, 23640, 26004, 27390, 32505, 32702, 36520, 43340, 49053, 52008, 54780, 65010, 65404, 81755, 86680, 98106, 109560, 130020, 130808, 163510, 179861, 196212, 245265, 260040, 327020, 359722, 392424, 490530, 539583, 654040, 719444, 899305, 981060, 1079166, 1438888, 1798610, 1962120, 2158332, 2697915, 3597220, 4316664, 5395830, 7194440, 10791660, 21583320]

約数ペア:

[(1, 21583320), (2, 10791660), (3, 7194440), (4, 5395830), (5, 4316664), (6, 3597220), (8, 2697915), (10, 2158332), (11, 1962120), (12, 1798610), (15, 1438888), (20, 1079166), (22, 981060), (24, 899305), (30, 719444), (33, 654040), (40, 539583), (44, 490530), (55, 392424), (60, 359722), (66, 327020), (83, 260040), (88, 245265), (110, 196212), (120, 179861), (132, 163510), (165, 130808), (166, 130020), (197, 109560), (220, 98106), (249, 86680), (264, 81755), (330, 65404), (332, 65010), (394, 54780), (415, 52008), (440, 49053), (498, 43340), (591, 36520), (660, 32702), (664, 32505), (788, 27390), (830, 26004), (913, 23640), (985, 21912), (996, 21670), (1182, 18260), (1245, 17336), (1320, 16351), (1576, 13695), (1660, 13002), (1826, 11820), (1970, 10956), (1992, 10835), (2167, 9960), (2364, 9130), (2490, 8668), (2739, 7880), (2955, 7304), (3320, 6501), (3652, 5910), (3940, 5478), (4334, 4980), (4565, 4728)]