19907657

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{229}}^1\times {\mathrm{1129}}^1$

素因数の和:1376

約数の個数: 16

約数和(自身を含む): 24950400

約数和(自身を除く): 5042743

約数列:

[1, 7, 11, 77, 229, 1129, 1603, 2519, 7903, 12419, 17633, 86933, 258541, 1809787, 2843951, 19907657]

約数ペア:

[(1, 19907657), (7, 2843951), (11, 1809787), (77, 258541), (229, 86933), (1129, 17633), (1603, 12419), (2519, 7903)]