19213915

素因数分解:

$5^1\times 7^1\times {\mathrm{37}}^2\times {\mathrm{401}}^1$

素因数の和:487

約数の個数: 24

約数和(自身を含む): 27149472

約数和(自身を除く): 7935557

約数列:

[1, 5, 7, 35, 37, 185, 259, 401, 1295, 1369, 2005, 2807, 6845, 9583, 14035, 14837, 47915, 74185, 103859, 519295, 548969, 2744845, 3842783, 19213915]

約数ペア:

[(1, 19213915), (5, 3842783), (7, 2744845), (35, 548969), (37, 519295), (185, 103859), (259, 74185), (401, 47915), (1295, 14837), (1369, 14035), (2005, 9583), (2807, 6845)]