21062439

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{101}}^1$

素因数の和:200

約数の個数: 48

約数和(自身を含む): 34369920

約数和(自身を除く): 13307481

約数列:

[1, 3, 9, 17, 29, 47, 51, 87, 101, 141, 153, 261, 303, 423, 493, 799, 909, 1363, 1479, 1717, 2397, 2929, 4089, 4437, 4747, 5151, 7191, 8787, 12267, 14241, 15453, 23171, 26361, 42723, 49793, 69513, 80699, 137663, 149379, 208539, 242097, 412989, 448137, 726291, 1238967, 2340271, 7020813, 21062439]

約数ペア:

[(1, 21062439), (3, 7020813), (9, 2340271), (17, 1238967), (29, 726291), (47, 448137), (51, 412989), (87, 242097), (101, 208539), (141, 149379), (153, 137663), (261, 80699), (303, 69513), (423, 49793), (493, 42723), (799, 26361), (909, 23171), (1363, 15453), (1479, 14241), (1717, 12267), (2397, 8787), (2929, 7191), (4089, 5151), (4437, 4747)]