20978904

素因数分解:

$2^3\times 3^1\times {\mathrm{874121}}^1$

素因数の和:874130

約数の個数: 16

約数和(自身を含む): 52447320

約数和(自身を除く): 31468416

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 874121, 1748242, 2622363, 3496484, 5244726, 6992968, 10489452, 20978904]

約数ペア:

[(1, 20978904), (2, 10489452), (3, 6992968), (4, 5244726), (6, 3496484), (8, 2622363), (12, 1748242), (24, 874121)]