20963439

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{1237}}^1$

素因数の和:1519

約数の個数: 24

約数和(自身を含む): 34763040

約数和(自身を除く): 13799601

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1237, 1883, 2421, 3711, 5649, 8659, 11133, 16947, 25977, 77931, 332753, 998259, 2329271, 2994777, 6987813, 20963439]

約数ペア:

[(1, 20963439), (3, 6987813), (7, 2994777), (9, 2329271), (21, 998259), (63, 332753), (269, 77931), (807, 25977), (1237, 16947), (1883, 11133), (2421, 8659), (3711, 5649)]