21000369684

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{10453}}^1\times {\mathrm{23917}}^1$

素因数の和:34384

約数の個数: 48

約数和(自身を含む): 56008684928

約数和(自身を除く): 35008315244

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 10453, 20906, 23917, 31359, 41812, 47834, 62718, 71751, 73171, 95668, 125436, 143502, 146342, 167419, 219513, 287004, 292684, 334838, 439026, 502257, 669676, 878052, 1004514, 2009028, 250004401, 500008802, 750013203, 1000017604, 1500026406, 1750030807, 3000052812, 3500061614, 5250092421, 7000123228, 10500184842, 21000369684]

約数ペア:

[(1, 21000369684), (2, 10500184842), (3, 7000123228), (4, 5250092421), (6, 3500061614), (7, 3000052812), (12, 1750030807), (14, 1500026406), (21, 1000017604), (28, 750013203), (42, 500008802), (84, 250004401), (10453, 2009028), (20906, 1004514), (23917, 878052), (31359, 669676), (41812, 502257), (47834, 439026), (62718, 334838), (71751, 292684), (73171, 287004), (95668, 219513), (125436, 167419), (143502, 146342)]