19839405

素因数分解:

$3^1\times 5^1\times {\mathrm{47}}^1\times {\mathrm{107}}^1\times {\mathrm{263}}^1$

素因数の和:425

約数の個数: 32

約数和(自身を含む): 32845824

約数和(自身を除く): 13006419

約数列:

[1, 3, 5, 15, 47, 107, 141, 235, 263, 321, 535, 705, 789, 1315, 1605, 3945, 5029, 12361, 15087, 25145, 28141, 37083, 61805, 75435, 84423, 140705, 185415, 422115, 1322627, 3967881, 6613135, 19839405]

約数ペア:

[(1, 19839405), (3, 6613135), (5, 3967881), (15, 1322627), (47, 422115), (107, 185415), (141, 140705), (235, 84423), (263, 75435), (321, 61805), (535, 37083), (705, 28141), (789, 25145), (1315, 15087), (1605, 12361), (3945, 5029)]