21282486

素因数分解:

$2^1\times 3^1\times {\mathrm{263}}^1\times {\mathrm{13487}}^1$

素因数の和:13755

約数の個数: 16

約数和(自身を含む): 42729984

約数和(自身を除く): 21447498

約数列:

[1, 2, 3, 6, 263, 526, 789, 1578, 13487, 26974, 40461, 80922, 3547081, 7094162, 10641243, 21282486]

約数ペア:

[(1, 21282486), (2, 10641243), (3, 7094162), (6, 3547081), (263, 80922), (526, 40461), (789, 26974), (1578, 13487)]