19970535

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{2179}}^1$

素因数の和:2247

約数の個数: 32

約数和(自身を含む): 35159040

約数和(自身を除く): 15188505

約数列:

[1, 3, 5, 13, 15, 39, 47, 65, 141, 195, 235, 611, 705, 1833, 2179, 3055, 6537, 9165, 10895, 28327, 32685, 84981, 102413, 141635, 307239, 424905, 512065, 1331369, 1536195, 3994107, 6656845, 19970535]

約数ペア:

[(1, 19970535), (3, 6656845), (5, 3994107), (13, 1536195), (15, 1331369), (39, 512065), (47, 424905), (65, 307239), (141, 141635), (195, 102413), (235, 84981), (611, 32685), (705, 28327), (1833, 10895), (2179, 9165), (3055, 6537)]