20108894

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{409}}^1$

素因数の和:516

約数の個数: 32

約数和(自身を含む): 34164480

約数和(自身を除く): 14055586

約数列:

[1, 2, 13, 26, 31, 61, 62, 122, 403, 409, 793, 806, 818, 1586, 1891, 3782, 5317, 10634, 12679, 24583, 24949, 25358, 49166, 49898, 164827, 324337, 329654, 648674, 773419, 1546838, 10054447, 20108894]

約数ペア:

[(1, 20108894), (2, 10054447), (13, 1546838), (26, 773419), (31, 648674), (61, 329654), (62, 324337), (122, 164827), (403, 49898), (409, 49166), (793, 25358), (806, 24949), (818, 24583), (1586, 12679), (1891, 10634), (3782, 5317)]