18805388

素因数分解:

$2^2\times 7^1\times {\mathrm{41}}^1\times {\mathrm{16381}}^1$

素因数の和:16433

約数の個数: 24

約数和(自身を含む): 38530464

約数和(自身を除く): 19725076

約数列:

[1, 2, 4, 7, 14, 28, 41, 82, 164, 287, 574, 1148, 16381, 32762, 65524, 114667, 229334, 458668, 671621, 1343242, 2686484, 4701347, 9402694, 18805388]

約数ペア:

[(1, 18805388), (2, 9402694), (4, 4701347), (7, 2686484), (14, 1343242), (28, 671621), (41, 458668), (82, 229334), (164, 114667), (287, 65524), (574, 32762), (1148, 16381)]