20802201

素因数分解:

$3^1\times 7^1\times {\mathrm{79}}^1\times {\mathrm{12539}}^1$

素因数の和:12628

約数の個数: 16

約数和(自身を含む): 32102400

約数和(自身を除く): 11300199

約数列:

[1, 3, 7, 21, 79, 237, 553, 1659, 12539, 37617, 87773, 263319, 990581, 2971743, 6934067, 20802201]

約数ペア:

[(1, 20802201), (3, 6934067), (7, 2971743), (21, 990581), (79, 263319), (237, 87773), (553, 37617), (1659, 12539)]