19977195

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{61}}^1\times {\mathrm{3119}}^1$

素因数の和:3195

約数の個数: 32

約数和(自身を含む): 37140480

約数和(自身を除く): 17163285

約数列:

[1, 3, 5, 7, 15, 21, 35, 61, 105, 183, 305, 427, 915, 1281, 2135, 3119, 6405, 9357, 15595, 21833, 46785, 65499, 109165, 190259, 327495, 570777, 951295, 1331813, 2853885, 3995439, 6659065, 19977195]

約数ペア:

[(1, 19977195), (3, 6659065), (5, 3995439), (7, 2853885), (15, 1331813), (21, 951295), (35, 570777), (61, 327495), (105, 190259), (183, 109165), (305, 65499), (427, 46785), (915, 21833), (1281, 15595), (2135, 9357), (3119, 6405)]