19510815

素因数分解:

$3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{4027}}^1$

素因数の和:4071

約数の個数: 32

約数和(自身を含む): 34801920

約数和(自身を除く): 15291105

約数列:

[1, 3, 5, 15, 17, 19, 51, 57, 85, 95, 255, 285, 323, 969, 1615, 4027, 4845, 12081, 20135, 60405, 68459, 76513, 205377, 229539, 342295, 382565, 1026885, 1147695, 1300721, 3902163, 6503605, 19510815]

約数ペア:

[(1, 19510815), (3, 6503605), (5, 3902163), (15, 1300721), (17, 1147695), (19, 1026885), (51, 382565), (57, 342295), (85, 229539), (95, 205377), (255, 76513), (285, 68459), (323, 60405), (969, 20135), (1615, 12081), (4027, 4845)]