21728888

素因数分解:

$2^3\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1283}}^1$

素因数の和:1391

約数の個数: 32

約数和(自身を含む): 42757200

約数和(自身を除く): 21028312

約数列:

[1, 2, 4, 8, 29, 58, 73, 116, 146, 232, 292, 584, 1283, 2117, 2566, 4234, 5132, 8468, 10264, 16936, 37207, 74414, 93659, 148828, 187318, 297656, 374636, 749272, 2716111, 5432222, 10864444, 21728888]

約数ペア:

[(1, 21728888), (2, 10864444), (4, 5432222), (8, 2716111), (29, 749272), (58, 374636), (73, 297656), (116, 187318), (146, 148828), (232, 93659), (292, 74414), (584, 37207), (1283, 16936), (2117, 10264), (2566, 8468), (4234, 5132)]