21640184

素因数分解:

$2^3\times {\mathrm{17}}^1\times {\mathrm{159119}}^1$

素因数の和:159142

約数の個数: 16

約数和(自身を含む): 42962400

約数和(自身を除く): 21322216

約数列:

[1, 2, 4, 8, 17, 34, 68, 136, 159119, 318238, 636476, 1272952, 2705023, 5410046, 10820092, 21640184]

約数ペア:

[(1, 21640184), (2, 10820092), (4, 5410046), (8, 2705023), (17, 1272952), (34, 636476), (68, 318238), (136, 159119)]