20047503

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{149}}^2$

素因数の和:351

約数の個数: 24

約数和(自身を含む): 31470208

約数和(自身を除く): 11422705

約数列:

[1, 3, 7, 21, 43, 129, 149, 301, 447, 903, 1043, 3129, 6407, 19221, 22201, 44849, 66603, 134547, 155407, 466221, 954643, 2863929, 6682501, 20047503]

約数ペア:

[(1, 20047503), (3, 6682501), (7, 2863929), (21, 954643), (43, 466221), (129, 155407), (149, 134547), (301, 66603), (447, 44849), (903, 22201), (1043, 19221), (3129, 6407)]