21320640

素因数分解:

$2^6\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{673}}^1$

素因数の和:707

約数の個数: 168

約数和(自身を含む): 80119728

約数和(自身を除く): 58799088

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 16, 18, 20, 22, 24, 30, 32, 33, 36, 40, 44, 45, 48, 55, 60, 64, 66, 72, 80, 88, 90, 96, 99, 110, 120, 132, 144, 160, 165, 176, 180, 192, 198, 220, 240, 264, 288, 320, 330, 352, 360, 396, 440, 480, 495, 528, 576, 660, 673, 704, 720, 792, 880, 960, 990, 1056, 1320, 1346, 1440, 1584, 1760, 1980, 2019, 2112, 2640, 2692, 2880, 3168, 3365, 3520, 3960, 4038, 5280, 5384, 6057, 6336, 6730, 7403, 7920, 8076, 10095, 10560, 10768, 12114, 13460, 14806, 15840, 16152, 20190, 21536, 22209, 24228, 26920, 29612, 30285, 31680, 32304, 37015, 40380, 43072, 44418, 48456, 53840, 59224, 60570, 64608, 66627, 74030, 80760, 88836, 96912, 107680, 111045, 118448, 121140, 129216, 133254, 148060, 161520, 177672, 193824, 215360, 222090, 236896, 242280, 266508, 296120, 323040, 333135, 355344, 387648, 444180, 473792, 484560, 533016, 592240, 646080, 666270, 710688, 888360, 969120, 1066032, 1184480, 1332540, 1421376, 1776720, 1938240, 2132064, 2368960, 2665080, 3553440, 4264128, 5330160, 7106880, 10660320, 21320640]

約数ペア:

[(1, 21320640), (2, 10660320), (3, 7106880), (4, 5330160), (5, 4264128), (6, 3553440), (8, 2665080), (9, 2368960), (10, 2132064), (11, 1938240), (12, 1776720), (15, 1421376), (16, 1332540), (18, 1184480), (20, 1066032), (22, 969120), (24, 888360), (30, 710688), (32, 666270), (33, 646080), (36, 592240), (40, 533016), (44, 484560), (45, 473792), (48, 444180), (55, 387648), (60, 355344), (64, 333135), (66, 323040), (72, 296120), (80, 266508), (88, 242280), (90, 236896), (96, 222090), (99, 215360), (110, 193824), (120, 177672), (132, 161520), (144, 148060), (160, 133254), (165, 129216), (176, 121140), (180, 118448), (192, 111045), (198, 107680), (220, 96912), (240, 88836), (264, 80760), (288, 74030), (320, 66627), (330, 64608), (352, 60570), (360, 59224), (396, 53840), (440, 48456), (480, 44418), (495, 43072), (528, 40380), (576, 37015), (660, 32304), (673, 31680), (704, 30285), (720, 29612), (792, 26920), (880, 24228), (960, 22209), (990, 21536), (1056, 20190), (1320, 16152), (1346, 15840), (1440, 14806), (1584, 13460), (1760, 12114), (1980, 10768), (2019, 10560), (2112, 10095), (2640, 8076), (2692, 7920), (2880, 7403), (3168, 6730), (3365, 6336), (3520, 6057), (3960, 5384), (4038, 5280)]