21033320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{6829}}^1$

素因数の和:6858

約数の個数: 64

約数和(自身を含む): 59011200

約数和(自身を除く): 37977880

約数列:

[1, 2, 4, 5, 7, 8, 10, 11, 14, 20, 22, 28, 35, 40, 44, 55, 56, 70, 77, 88, 110, 140, 154, 220, 280, 308, 385, 440, 616, 770, 1540, 3080, 6829, 13658, 27316, 34145, 47803, 54632, 68290, 75119, 95606, 136580, 150238, 191212, 239015, 273160, 300476, 375595, 382424, 478030, 525833, 600952, 751190, 956060, 1051666, 1502380, 1912120, 2103332, 2629165, 3004760, 4206664, 5258330, 10516660, 21033320]

約数ペア:

[(1, 21033320), (2, 10516660), (4, 5258330), (5, 4206664), (7, 3004760), (8, 2629165), (10, 2103332), (11, 1912120), (14, 1502380), (20, 1051666), (22, 956060), (28, 751190), (35, 600952), (40, 525833), (44, 478030), (55, 382424), (56, 375595), (70, 300476), (77, 273160), (88, 239015), (110, 191212), (140, 150238), (154, 136580), (220, 95606), (280, 75119), (308, 68290), (385, 54632), (440, 47803), (616, 34145), (770, 27316), (1540, 13658), (3080, 6829)]