21000539945

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{59}}^1\times {\mathrm{924523}}^1$

素因数の和:924605

約数の個数: 32

約数和(自身を含む): 31951549440

約数和(自身を除く): 10951009495

約数列:

[1, 5, 7, 11, 35, 55, 59, 77, 295, 385, 413, 649, 2065, 3245, 4543, 22715, 924523, 4622615, 6471661, 10169753, 32358305, 50848765, 54546857, 71188271, 272734285, 355941355, 381827999, 600015427, 1909139995, 3000077135, 4200107989, 21000539945]

約数ペア:

[(1, 21000539945), (5, 4200107989), (7, 3000077135), (11, 1909139995), (35, 600015427), (55, 381827999), (59, 355941355), (77, 272734285), (295, 71188271), (385, 54546857), (413, 50848765), (649, 32358305), (2065, 10169753), (3245, 6471661), (4543, 4622615), (22715, 924523)]