21172844

素因数分解:

$2^2\times 7^1\times {\mathrm{11}}^1\times {\mathrm{68743}}^1$

素因数の和:68765

約数の個数: 24

約数和(自身を含む): 46195968

約数和(自身を除く): 25023124

約数列:

[1, 2, 4, 7, 11, 14, 22, 28, 44, 77, 154, 308, 68743, 137486, 274972, 481201, 756173, 962402, 1512346, 1924804, 3024692, 5293211, 10586422, 21172844]

約数ペア:

[(1, 21172844), (2, 10586422), (4, 5293211), (7, 3024692), (11, 1924804), (14, 1512346), (22, 962402), (28, 756173), (44, 481201), (77, 274972), (154, 137486), (308, 68743)]