21133440

素因数分解:

$2^7\times 3^3\times 5^1\times {\mathrm{1223}}^1$

素因数の和:1251

約数の個数: 128

約数和(自身を含む): 74908800

約数和(自身を除く): 53775360

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 18, 20, 24, 27, 30, 32, 36, 40, 45, 48, 54, 60, 64, 72, 80, 90, 96, 108, 120, 128, 135, 144, 160, 180, 192, 216, 240, 270, 288, 320, 360, 384, 432, 480, 540, 576, 640, 720, 864, 960, 1080, 1152, 1223, 1440, 1728, 1920, 2160, 2446, 2880, 3456, 3669, 4320, 4892, 5760, 6115, 7338, 8640, 9784, 11007, 12230, 14676, 17280, 18345, 19568, 22014, 24460, 29352, 33021, 36690, 39136, 44028, 48920, 55035, 58704, 66042, 73380, 78272, 88056, 97840, 110070, 117408, 132084, 146760, 156544, 165105, 176112, 195680, 220140, 234816, 264168, 293520, 330210, 352224, 391360, 440280, 469632, 528336, 587040, 660420, 704448, 782720, 880560, 1056672, 1174080, 1320840, 1408896, 1761120, 2113344, 2348160, 2641680, 3522240, 4226688, 5283360, 7044480, 10566720, 21133440]

約数ペア:

[(1, 21133440), (2, 10566720), (3, 7044480), (4, 5283360), (5, 4226688), (6, 3522240), (8, 2641680), (9, 2348160), (10, 2113344), (12, 1761120), (15, 1408896), (16, 1320840), (18, 1174080), (20, 1056672), (24, 880560), (27, 782720), (30, 704448), (32, 660420), (36, 587040), (40, 528336), (45, 469632), (48, 440280), (54, 391360), (60, 352224), (64, 330210), (72, 293520), (80, 264168), (90, 234816), (96, 220140), (108, 195680), (120, 176112), (128, 165105), (135, 156544), (144, 146760), (160, 132084), (180, 117408), (192, 110070), (216, 97840), (240, 88056), (270, 78272), (288, 73380), (320, 66042), (360, 58704), (384, 55035), (432, 48920), (480, 44028), (540, 39136), (576, 36690), (640, 33021), (720, 29352), (864, 24460), (960, 22014), (1080, 19568), (1152, 18345), (1223, 17280), (1440, 14676), (1728, 12230), (1920, 11007), (2160, 9784), (2446, 8640), (2880, 7338), (3456, 6115), (3669, 5760), (4320, 4892)]