216138412

素因数分解:

$2^2\times 7^2\times {\mathrm{1102747}}^1$

素因数の和:1102765

約数の個数: 18

約数和(自身を含む): 439996452

約数和(自身を除く): 223858040

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 196, 1102747, 2205494, 4410988, 7719229, 15438458, 30876916, 54034603, 108069206, 216138412]

約数ペア:

[(1, 216138412), (2, 108069206), (4, 54034603), (7, 30876916), (14, 15438458), (28, 7719229), (49, 4410988), (98, 2205494), (196, 1102747)]