21428484

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{3313}}^1$

素因数の和:3345

約数の個数: 72

約数和(自身を含む): 63469728

約数和(自身を除く): 42041244

約数列:

[1, 2, 3, 4, 6, 7, 11, 12, 14, 21, 22, 28, 33, 42, 44, 49, 66, 77, 84, 98, 132, 147, 154, 196, 231, 294, 308, 462, 539, 588, 924, 1078, 1617, 2156, 3234, 3313, 6468, 6626, 9939, 13252, 19878, 23191, 36443, 39756, 46382, 69573, 72886, 92764, 109329, 139146, 145772, 162337, 218658, 255101, 278292, 324674, 437316, 487011, 510202, 649348, 765303, 974022, 1020404, 1530606, 1785707, 1948044, 3061212, 3571414, 5357121, 7142828, 10714242, 21428484]

約数ペア:

[(1, 21428484), (2, 10714242), (3, 7142828), (4, 5357121), (6, 3571414), (7, 3061212), (11, 1948044), (12, 1785707), (14, 1530606), (21, 1020404), (22, 974022), (28, 765303), (33, 649348), (42, 510202), (44, 487011), (49, 437316), (66, 324674), (77, 278292), (84, 255101), (98, 218658), (132, 162337), (147, 145772), (154, 139146), (196, 109329), (231, 92764), (294, 72886), (308, 69573), (462, 46382), (539, 39756), (588, 36443), (924, 23191), (1078, 19878), (1617, 13252), (2156, 9939), (3234, 6626), (3313, 6468)]