20218676541

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{1497347}}^1$

素因数の和:1498000

約数の個数: 16

約数和(自身を含む): 30857347584

約数和(自身を除く): 10638671043

約数列:

[1, 3, 7, 21, 643, 1929, 4501, 13503, 1497347, 4492041, 10481429, 31444287, 962794121, 2888382363, 6739558847, 20218676541]

約数ペア:

[(1, 20218676541), (3, 6739558847), (7, 2888382363), (21, 962794121), (643, 31444287), (1929, 10481429), (4501, 4492041), (13503, 1497347)]