21207120

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{277}}^1$

素因数の和:333

約数の個数: 160

約数和(自身を含む): 74459520

約数和(自身を除く): 53252400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 29, 30, 33, 40, 44, 48, 55, 58, 60, 66, 80, 87, 88, 110, 116, 120, 132, 145, 165, 174, 176, 220, 232, 240, 264, 277, 290, 319, 330, 348, 435, 440, 464, 528, 554, 580, 638, 660, 696, 831, 870, 880, 957, 1108, 1160, 1276, 1320, 1385, 1392, 1595, 1662, 1740, 1914, 2216, 2320, 2552, 2640, 2770, 3047, 3190, 3324, 3480, 3828, 4155, 4432, 4785, 5104, 5540, 6094, 6380, 6648, 6960, 7656, 8033, 8310, 9141, 9570, 11080, 12188, 12760, 13296, 15235, 15312, 16066, 16620, 18282, 19140, 22160, 24099, 24376, 25520, 30470, 32132, 33240, 36564, 38280, 40165, 45705, 48198, 48752, 60940, 64264, 66480, 73128, 76560, 80330, 88363, 91410, 96396, 120495, 121880, 128528, 146256, 160660, 176726, 182820, 192792, 240990, 243760, 265089, 321320, 353452, 365640, 385584, 441815, 481980, 530178, 642640, 706904, 731280, 883630, 963960, 1060356, 1325445, 1413808, 1767260, 1927920, 2120712, 2650890, 3534520, 4241424, 5301780, 7069040, 10603560, 21207120]

約数ペア:

[(1, 21207120), (2, 10603560), (3, 7069040), (4, 5301780), (5, 4241424), (6, 3534520), (8, 2650890), (10, 2120712), (11, 1927920), (12, 1767260), (15, 1413808), (16, 1325445), (20, 1060356), (22, 963960), (24, 883630), (29, 731280), (30, 706904), (33, 642640), (40, 530178), (44, 481980), (48, 441815), (55, 385584), (58, 365640), (60, 353452), (66, 321320), (80, 265089), (87, 243760), (88, 240990), (110, 192792), (116, 182820), (120, 176726), (132, 160660), (145, 146256), (165, 128528), (174, 121880), (176, 120495), (220, 96396), (232, 91410), (240, 88363), (264, 80330), (277, 76560), (290, 73128), (319, 66480), (330, 64264), (348, 60940), (435, 48752), (440, 48198), (464, 45705), (528, 40165), (554, 38280), (580, 36564), (638, 33240), (660, 32132), (696, 30470), (831, 25520), (870, 24376), (880, 24099), (957, 22160), (1108, 19140), (1160, 18282), (1276, 16620), (1320, 16066), (1385, 15312), (1392, 15235), (1595, 13296), (1662, 12760), (1740, 12188), (1914, 11080), (2216, 9570), (2320, 9141), (2552, 8310), (2640, 8033), (2770, 7656), (3047, 6960), (3190, 6648), (3324, 6380), (3480, 6094), (3828, 5540), (4155, 5104), (4432, 4785)]