19207985

素因数分解:

$5^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1\times {\mathrm{887}}^1$

素因数の和:1024

約数の個数: 16

約数和(自身を含む): 23784192

約数和(自身を除く): 4576207

約数列:

[1, 5, 61, 71, 305, 355, 887, 4331, 4435, 21655, 54107, 62977, 270535, 314885, 3841597, 19207985]

約数ペア:

[(1, 19207985), (5, 3841597), (61, 314885), (71, 270535), (305, 62977), (355, 54107), (887, 21655), (4331, 4435)]