19530385

素因数分解:

$5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{683}}^1$

素因数の和:757

約数の個数: 32

約数和(自身を含む): 28892160

約数和(自身を除く): 9361775

約数列:

[1, 5, 7, 19, 35, 43, 95, 133, 215, 301, 665, 683, 817, 1505, 3415, 4085, 4781, 5719, 12977, 23905, 28595, 29369, 64885, 90839, 146845, 205583, 454195, 558011, 1027915, 2790055, 3906077, 19530385]

約数ペア:

[(1, 19530385), (5, 3906077), (7, 2790055), (19, 1027915), (35, 558011), (43, 454195), (95, 205583), (133, 146845), (215, 90839), (301, 64885), (665, 29369), (683, 28595), (817, 23905), (1505, 12977), (3415, 5719), (4085, 4781)]