21379071

素因数分解:

$3^1\times 7^1\times {\mathrm{823}}^1\times {\mathrm{1237}}^1$

素因数の和:2070

約数の個数: 16

約数和(自身を含む): 32643584

約数和(自身を除く): 11264513

約数列:

[1, 3, 7, 21, 823, 1237, 2469, 3711, 5761, 8659, 17283, 25977, 1018051, 3054153, 7126357, 21379071]

約数ペア:

[(1, 21379071), (3, 7126357), (7, 3054153), (21, 1018051), (823, 25977), (1237, 17283), (2469, 8659), (3711, 5761)]