20986305

素因数分解:

$3^1\times 5^1\times {\mathrm{1019}}^1\times {\mathrm{1373}}^1$

素因数の和:2400

約数の個数: 16

約数和(自身を含む): 33635520

約数和(自身を除く): 12649215

約数列:

[1, 3, 5, 15, 1019, 1373, 3057, 4119, 5095, 6865, 15285, 20595, 1399087, 4197261, 6995435, 20986305]

約数ペア:

[(1, 20986305), (3, 6995435), (5, 4197261), (15, 1399087), (1019, 20595), (1373, 15285), (3057, 6865), (4119, 5095)]