20960919

素因数分解:

$3^2\times 7^1\times {\mathrm{47}}^1\times {\mathrm{7079}}^1$

素因数の和:7139

約数の個数: 24

約数和(自身を含む): 35343360

約数和(自身を除く): 14382441

約数列:

[1, 3, 7, 9, 21, 47, 63, 141, 329, 423, 987, 2961, 7079, 21237, 49553, 63711, 148659, 332713, 445977, 998139, 2328991, 2994417, 6986973, 20960919]

約数ペア:

[(1, 20960919), (3, 6986973), (7, 2994417), (9, 2328991), (21, 998139), (47, 445977), (63, 332713), (141, 148659), (329, 63711), (423, 49553), (987, 21237), (2961, 7079)]