21799904

素因数分解:

$2^5\times 7^2\times {\mathrm{13903}}^1$

素因数の和:13927

約数の個数: 36

約数和(自身を含む): 49929264

約数和(自身を除く): 28129360

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 49, 56, 98, 112, 196, 224, 392, 784, 1568, 13903, 27806, 55612, 97321, 111224, 194642, 222448, 389284, 444896, 681247, 778568, 1362494, 1557136, 2724988, 3114272, 5449976, 10899952, 21799904]

約数ペア:

[(1, 21799904), (2, 10899952), (4, 5449976), (7, 3114272), (8, 2724988), (14, 1557136), (16, 1362494), (28, 778568), (32, 681247), (49, 444896), (56, 389284), (98, 222448), (112, 194642), (196, 111224), (224, 97321), (392, 55612), (784, 27806), (1568, 13903)]