19406695

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{379}}^1$

素因数の和:428

約数の個数: 48

約数和(自身を含む): 31190400

約数和(自身を除く): 11783705

約数列:

[1, 5, 7, 11, 19, 35, 49, 55, 77, 95, 133, 209, 245, 379, 385, 539, 665, 931, 1045, 1463, 1895, 2653, 2695, 4169, 4655, 7201, 7315, 10241, 13265, 18571, 20845, 29183, 36005, 50407, 51205, 79211, 92855, 145915, 204281, 252035, 352849, 396055, 554477, 1021405, 1764245, 2772385, 3881339, 19406695]

約数ペア:

[(1, 19406695), (5, 3881339), (7, 2772385), (11, 1764245), (19, 1021405), (35, 554477), (49, 396055), (55, 352849), (77, 252035), (95, 204281), (133, 145915), (209, 92855), (245, 79211), (379, 51205), (385, 50407), (539, 36005), (665, 29183), (931, 20845), (1045, 18571), (1463, 13265), (1895, 10241), (2653, 7315), (2695, 7201), (4169, 4655)]