21278049392

素因数分解:

$2^4\times {\mathrm{37}}^2\times {\mathrm{127}}^1\times {\mathrm{7649}}^1$

素因数の和:7858

約数の個数: 60

約数和(自身を含む): 42709766400

約数和(自身を除く): 21431717008

約数列:

[1, 2, 4, 8, 16, 37, 74, 127, 148, 254, 296, 508, 592, 1016, 1369, 2032, 2738, 4699, 5476, 7649, 9398, 10952, 15298, 18796, 21904, 30596, 37592, 61192, 75184, 122384, 173863, 283013, 347726, 566026, 695452, 971423, 1132052, 1390904, 1942846, 2264104, 2781808, 3885692, 4528208, 7771384, 10471481, 15542768, 20942962, 35942651, 41885924, 71885302, 83771848, 143770604, 167543696, 287541208, 575082416, 1329878087, 2659756174, 5319512348, 10639024696, 21278049392]

約数ペア:

[(1, 21278049392), (2, 10639024696), (4, 5319512348), (8, 2659756174), (16, 1329878087), (37, 575082416), (74, 287541208), (127, 167543696), (148, 143770604), (254, 83771848), (296, 71885302), (508, 41885924), (592, 35942651), (1016, 20942962), (1369, 15542768), (2032, 10471481), (2738, 7771384), (4699, 4528208), (5476, 3885692), (7649, 2781808), (9398, 2264104), (10952, 1942846), (15298, 1390904), (18796, 1132052), (21904, 971423), (30596, 695452), (37592, 566026), (61192, 347726), (75184, 283013), (122384, 173863)]