20403033

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1511}}^1$

素因数の和:2164

約数の個数: 16

約数和(自身を含む): 31159296

約数和(自身を除く): 10756263

約数列:

[1, 3, 7, 21, 643, 1511, 1929, 4501, 4533, 10577, 13503, 31731, 971573, 2914719, 6801011, 20403033]

約数ペア:

[(1, 20403033), (3, 6801011), (7, 2914719), (21, 971573), (643, 31731), (1511, 13503), (1929, 10577), (4501, 4533)]