21475256

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{277}}^1\times {\mathrm{881}}^1$

素因数の和:1175

約数の個数: 32

約数和(自身を含む): 44135280

約数和(自身を除く): 22660024

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 277, 554, 881, 1108, 1762, 2216, 3047, 3524, 6094, 7048, 9691, 12188, 19382, 24376, 38764, 77528, 244037, 488074, 976148, 1952296, 2684407, 5368814, 10737628, 21475256]

約数ペア:

[(1, 21475256), (2, 10737628), (4, 5368814), (8, 2684407), (11, 1952296), (22, 976148), (44, 488074), (88, 244037), (277, 77528), (554, 38764), (881, 24376), (1108, 19382), (1762, 12188), (2216, 9691), (3047, 7048), (3524, 6094)]