21253320

素因数分解:

$2^3\times 3^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1789}}^1$

素因数の和:1820

約数の個数: 128

約数和(自身を含む): 77328000

約数和(自身を除く): 56074680

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 11, 12, 15, 18, 20, 22, 24, 27, 30, 33, 36, 40, 44, 45, 54, 55, 60, 66, 72, 88, 90, 99, 108, 110, 120, 132, 135, 165, 180, 198, 216, 220, 264, 270, 297, 330, 360, 396, 440, 495, 540, 594, 660, 792, 990, 1080, 1188, 1320, 1485, 1789, 1980, 2376, 2970, 3578, 3960, 5367, 5940, 7156, 8945, 10734, 11880, 14312, 16101, 17890, 19679, 21468, 26835, 32202, 35780, 39358, 42936, 48303, 53670, 59037, 64404, 71560, 78716, 80505, 96606, 98395, 107340, 118074, 128808, 157432, 161010, 177111, 193212, 196790, 214680, 236148, 241515, 295185, 322020, 354222, 386424, 393580, 472296, 483030, 531333, 590370, 644040, 708444, 787160, 885555, 966060, 1062666, 1180740, 1416888, 1771110, 1932120, 2125332, 2361480, 2656665, 3542220, 4250664, 5313330, 7084440, 10626660, 21253320]

約数ペア:

[(1, 21253320), (2, 10626660), (3, 7084440), (4, 5313330), (5, 4250664), (6, 3542220), (8, 2656665), (9, 2361480), (10, 2125332), (11, 1932120), (12, 1771110), (15, 1416888), (18, 1180740), (20, 1062666), (22, 966060), (24, 885555), (27, 787160), (30, 708444), (33, 644040), (36, 590370), (40, 531333), (44, 483030), (45, 472296), (54, 393580), (55, 386424), (60, 354222), (66, 322020), (72, 295185), (88, 241515), (90, 236148), (99, 214680), (108, 196790), (110, 193212), (120, 177111), (132, 161010), (135, 157432), (165, 128808), (180, 118074), (198, 107340), (216, 98395), (220, 96606), (264, 80505), (270, 78716), (297, 71560), (330, 64404), (360, 59037), (396, 53670), (440, 48303), (495, 42936), (540, 39358), (594, 35780), (660, 32202), (792, 26835), (990, 21468), (1080, 19679), (1188, 17890), (1320, 16101), (1485, 14312), (1789, 11880), (1980, 10734), (2376, 8945), (2970, 7156), (3578, 5940), (3960, 5367)]