20987246

素因数分解:

$2^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{10061}}^1$

素因数の和:10219

約数の個数: 16

約数和(自身を含む): 36223200

約数和(自身を除く): 15235954

約数列:

[1, 2, 7, 14, 149, 298, 1043, 2086, 10061, 20122, 70427, 140854, 1499089, 2998178, 10493623, 20987246]

約数ペア:

[(1, 20987246), (2, 10493623), (7, 2998178), (14, 1499089), (149, 140854), (298, 70427), (1043, 20122), (2086, 10061)]