20549431

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{367}}^1\times {\mathrm{421}}^1$

素因数の和:814

約数の個数: 16

約数和(自身を含む): 24847360

約数和(自身を除く): 4297929

約数列:

[1, 7, 19, 133, 367, 421, 2569, 2947, 6973, 7999, 48811, 55993, 154507, 1081549, 2935633, 20549431]

約数ペア:

[(1, 20549431), (7, 2935633), (19, 1081549), (133, 154507), (367, 55993), (421, 48811), (2569, 7999), (2947, 6973)]