20409081

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{1667}}^1$

素因数の和:1741

約数の個数: 32

約数和(自身を含む): 34587648

約数和(自身を除く): 14178567

約数列:

[1, 3, 7, 11, 21, 33, 53, 77, 159, 231, 371, 583, 1113, 1667, 1749, 4081, 5001, 11669, 12243, 18337, 35007, 55011, 88351, 128359, 265053, 385077, 618457, 971861, 1855371, 2915583, 6803027, 20409081]

約数ペア:

[(1, 20409081), (3, 6803027), (7, 2915583), (11, 1855371), (21, 971861), (33, 618457), (53, 385077), (77, 265053), (159, 128359), (231, 88351), (371, 55011), (583, 35007), (1113, 18337), (1667, 12243), (1749, 11669), (4081, 5001)]