20542753

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{431}}^1\times {\mathrm{619}}^1$

素因数の和:1068

約数の個数: 16

約数和(自身を含む): 25712640

約数和(自身を除く): 5169887

約数列:

[1, 7, 11, 77, 431, 619, 3017, 4333, 4741, 6809, 33187, 47663, 266789, 1867523, 2934679, 20542753]

約数ペア:

[(1, 20542753), (7, 2934679), (11, 1867523), (77, 266789), (431, 47663), (619, 33187), (3017, 6809), (4333, 4741)]