20819396

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{9311}}^1$

素因数の和:9371

約数の個数: 24

約数和(自身を含む): 40153344

約数和(自身を除く): 19333948

約数列:

[1, 2, 4, 13, 26, 43, 52, 86, 172, 559, 1118, 2236, 9311, 18622, 37244, 121043, 242086, 400373, 484172, 800746, 1601492, 5204849, 10409698, 20819396]

約数ペア:

[(1, 20819396), (2, 10409698), (4, 5204849), (13, 1601492), (26, 800746), (43, 484172), (52, 400373), (86, 242086), (172, 121043), (559, 37244), (1118, 18622), (2236, 9311)]