21447448

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{251}}^1\times {\mathrm{971}}^1$

素因数の和:1239

約数の個数: 32

約数和(自身を含む): 44089920

約数和(自身を除く): 22642472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 251, 502, 971, 1004, 1942, 2008, 2761, 3884, 5522, 7768, 10681, 11044, 21362, 22088, 42724, 85448, 243721, 487442, 974884, 1949768, 2680931, 5361862, 10723724, 21447448]

約数ペア:

[(1, 21447448), (2, 10723724), (4, 5361862), (8, 2680931), (11, 1949768), (22, 974884), (44, 487442), (88, 243721), (251, 85448), (502, 42724), (971, 22088), (1004, 21362), (1942, 11044), (2008, 10681), (2761, 7768), (3884, 5522)]