19164145

素因数分解:

$5^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{547}}^1$

素因数の和:590

約数の個数: 48

約数和(自身を含む): 31485888

約数和(自身を除く): 12321743

約数列:

[1, 5, 7, 11, 13, 35, 49, 55, 65, 77, 91, 143, 245, 385, 455, 539, 547, 637, 715, 1001, 2695, 2735, 3185, 3829, 5005, 6017, 7007, 7111, 19145, 26803, 30085, 35035, 35555, 42119, 49777, 78221, 134015, 210595, 248885, 294833, 348439, 391105, 547547, 1474165, 1742195, 2737735, 3832829, 19164145]

約数ペア:

[(1, 19164145), (5, 3832829), (7, 2737735), (11, 1742195), (13, 1474165), (35, 547547), (49, 391105), (55, 348439), (65, 294833), (77, 248885), (91, 210595), (143, 134015), (245, 78221), (385, 49777), (455, 42119), (539, 35555), (547, 35035), (637, 30085), (715, 26803), (1001, 19145), (2695, 7111), (2735, 7007), (3185, 6017), (3829, 5005)]