28658469

素因数分解:

$3^1\times 7^1\times {\mathrm{641}}^1\times {\mathrm{2129}}^1$

素因数の和:2780

約数の個数: 16

約数和(自身を含む): 43758720

約数和(自身を除く): 15100251

約数列:

[1, 3, 7, 21, 641, 1923, 2129, 4487, 6387, 13461, 14903, 44709, 1364689, 4094067, 9552823, 28658469]

約数ペア:

[(1, 28658469), (3, 9552823), (7, 4094067), (21, 1364689), (641, 44709), (1923, 14903), (2129, 13461), (4487, 6387)]