19016921

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{491}}^1\times {\mathrm{503}}^1$

素因数の和:1012

約数の個数: 16

約数和(自身を含む): 23804928

約数和(自身を除く): 4788007

約数列:

[1, 7, 11, 77, 491, 503, 3437, 3521, 5401, 5533, 37807, 38731, 246973, 1728811, 2716703, 19016921]

約数ペア:

[(1, 19016921), (7, 2716703), (11, 1728811), (77, 246973), (491, 38731), (503, 37807), (3437, 5533), (3521, 5401)]