21645884

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{547}}^1\times {\mathrm{761}}^1$

素因数の和:1325

約数の個数: 24

約数和(自身を含む): 40922448

約数和(自身を除く): 19276564

約数列:

[1, 2, 4, 13, 26, 52, 547, 761, 1094, 1522, 2188, 3044, 7111, 9893, 14222, 19786, 28444, 39572, 416267, 832534, 1665068, 5411471, 10822942, 21645884]

約数ペア:

[(1, 21645884), (2, 10822942), (4, 5411471), (13, 1665068), (26, 832534), (52, 416267), (547, 39572), (761, 28444), (1094, 19786), (1522, 14222), (2188, 9893), (3044, 7111)]