19188169

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{661}}^1$

素因数の和:721

約数の個数: 32

約数和(自身を含む): 26691840

約数和(自身を除く): 7503671

約数列:

[1, 7, 11, 13, 29, 77, 91, 143, 203, 319, 377, 661, 1001, 2233, 2639, 4147, 4627, 7271, 8593, 19169, 29029, 50897, 60151, 94523, 134183, 210859, 249197, 661661, 1476013, 1744379, 2741167, 19188169]

約数ペア:

[(1, 19188169), (7, 2741167), (11, 1744379), (13, 1476013), (29, 661661), (77, 249197), (91, 210859), (143, 134183), (203, 94523), (319, 60151), (377, 50897), (661, 29029), (1001, 19169), (2233, 8593), (2639, 7271), (4147, 4627)]