21134820

素因数分解:

$2^2\times 3^1\times 5^1\times 7^1\times {\mathrm{50321}}^1$

素因数の和:50340

約数の個数: 48

約数和(自身を含む): 67632768

約数和(自身を除く): 46497948

約数列:

[1, 2, 3, 4, 5, 6, 7, 10, 12, 14, 15, 20, 21, 28, 30, 35, 42, 60, 70, 84, 105, 140, 210, 420, 50321, 100642, 150963, 201284, 251605, 301926, 352247, 503210, 603852, 704494, 754815, 1006420, 1056741, 1408988, 1509630, 1761235, 2113482, 3019260, 3522470, 4226964, 5283705, 7044940, 10567410, 21134820]

約数ペア:

[(1, 21134820), (2, 10567410), (3, 7044940), (4, 5283705), (5, 4226964), (6, 3522470), (7, 3019260), (10, 2113482), (12, 1761235), (14, 1509630), (15, 1408988), (20, 1056741), (21, 1006420), (28, 754815), (30, 704494), (35, 603852), (42, 503210), (60, 352247), (70, 301926), (84, 251605), (105, 201284), (140, 150963), (210, 100642), (420, 50321)]