20297212

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{5347}}^1$

素因数の和:5437

約数の個数: 24

約数和(自身を含む): 38783696

約数和(自身を除く): 18486484

約数列:

[1, 2, 4, 13, 26, 52, 73, 146, 292, 949, 1898, 3796, 5347, 10694, 21388, 69511, 139022, 278044, 390331, 780662, 1561324, 5074303, 10148606, 20297212]

約数ペア:

[(1, 20297212), (2, 10148606), (4, 5074303), (13, 1561324), (26, 780662), (52, 390331), (73, 278044), (146, 139022), (292, 69511), (949, 21388), (1898, 10694), (3796, 5347)]