20016409

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{653}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 23857920

約数和(自身を除く): 3841511

約数列:

[1, 7, 29, 151, 203, 653, 1057, 4379, 4571, 18937, 30653, 98603, 132559, 690221, 2859487, 20016409]

約数ペア:

[(1, 20016409), (7, 2859487), (29, 690221), (151, 132559), (203, 98603), (653, 30653), (1057, 18937), (4379, 4571)]