201520403

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{167}}^1\times {\mathrm{211}}^1$

素因数の和:447

約数の個数: 32

約数和(自身を含む): 250736640

約数和(自身を除く): 49216237

約数列:

[1, 7, 19, 43, 133, 167, 211, 301, 817, 1169, 1477, 3173, 4009, 5719, 7181, 9073, 22211, 28063, 35237, 50267, 63511, 136439, 172387, 246659, 669503, 955073, 1206709, 1515191, 4686521, 10606337, 28788629, 201520403]

約数ペア:

[(1, 201520403), (7, 28788629), (19, 10606337), (43, 4686521), (133, 1515191), (167, 1206709), (211, 955073), (301, 669503), (817, 246659), (1169, 172387), (1477, 136439), (3173, 63511), (4009, 50267), (5719, 35237), (7181, 28063), (9073, 22211)]