81387292

素因数分解:

$2^2\times 7^1\times {\mathrm{1109}}^1\times {\mathrm{2621}}^1$

素因数の和:3741

約数の個数: 24

約数和(自身を含む): 162983520

約数和(自身を除く): 81596228

約数列:

[1, 2, 4, 7, 14, 28, 1109, 2218, 2621, 4436, 5242, 7763, 10484, 15526, 18347, 31052, 36694, 73388, 2906689, 5813378, 11626756, 20346823, 40693646, 81387292]

約数ペア:

[(1, 81387292), (2, 40693646), (4, 20346823), (7, 11626756), (14, 5813378), (28, 2906689), (1109, 73388), (2218, 36694), (2621, 31052), (4436, 18347), (5242, 15526), (7763, 10484)]