20381137

素因数分解:

$7^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1\times {\mathrm{809}}^1$

素因数の和:936

約数の個数: 16

約数和(自身を含む): 24105600

約数和(自身を除く): 3724463

約数列:

[1, 7, 59, 61, 413, 427, 809, 3599, 5663, 25193, 47731, 49349, 334117, 345443, 2911591, 20381137]

約数ペア:

[(1, 20381137), (7, 2911591), (59, 345443), (61, 334117), (413, 49349), (427, 47731), (809, 25193), (3599, 5663)]