21022320

素因数分解:

$2^4\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{7963}}^1$

素因数の和:7990

約数の個数: 80

約数和(自身を含む): 71102592

約数和(自身を除く): 50080272

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 11, 12, 15, 16, 20, 22, 24, 30, 33, 40, 44, 48, 55, 60, 66, 80, 88, 110, 120, 132, 165, 176, 220, 240, 264, 330, 440, 528, 660, 880, 1320, 2640, 7963, 15926, 23889, 31852, 39815, 47778, 63704, 79630, 87593, 95556, 119445, 127408, 159260, 175186, 191112, 238890, 262779, 318520, 350372, 382224, 437965, 477780, 525558, 637040, 700744, 875930, 955560, 1051116, 1313895, 1401488, 1751860, 1911120, 2102232, 2627790, 3503720, 4204464, 5255580, 7007440, 10511160, 21022320]

約数ペア:

[(1, 21022320), (2, 10511160), (3, 7007440), (4, 5255580), (5, 4204464), (6, 3503720), (8, 2627790), (10, 2102232), (11, 1911120), (12, 1751860), (15, 1401488), (16, 1313895), (20, 1051116), (22, 955560), (24, 875930), (30, 700744), (33, 637040), (40, 525558), (44, 477780), (48, 437965), (55, 382224), (60, 350372), (66, 318520), (80, 262779), (88, 238890), (110, 191112), (120, 175186), (132, 159260), (165, 127408), (176, 119445), (220, 95556), (240, 87593), (264, 79630), (330, 63704), (440, 47778), (528, 39815), (660, 31852), (880, 23889), (1320, 15926), (2640, 7963)]