21308896

素因数分解:

$2^5\times 7^1\times {\mathrm{251}}^1\times {\mathrm{379}}^1$

素因数の和:647

約数の個数: 48

約数和(自身を含む): 48263040

約数和(自身を除く): 26954144

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 112, 224, 251, 379, 502, 758, 1004, 1516, 1757, 2008, 2653, 3032, 3514, 4016, 5306, 6064, 7028, 8032, 10612, 12128, 14056, 21224, 28112, 42448, 56224, 84896, 95129, 190258, 380516, 665903, 761032, 1331806, 1522064, 2663612, 3044128, 5327224, 10654448, 21308896]

約数ペア:

[(1, 21308896), (2, 10654448), (4, 5327224), (7, 3044128), (8, 2663612), (14, 1522064), (16, 1331806), (28, 761032), (32, 665903), (56, 380516), (112, 190258), (224, 95129), (251, 84896), (379, 56224), (502, 42448), (758, 28112), (1004, 21224), (1516, 14056), (1757, 12128), (2008, 10612), (2653, 8032), (3032, 7028), (3514, 6064), (4016, 5306)]