39964743

素因数分解:

$3^2\times 7^2\times {\mathrm{13}}^1\times {\mathrm{6971}}^1$

素因数の和:7004

約数の個数: 36

約数和(自身を含む): 72327528

約数和(自身を除く): 32362785

約数列:

[1, 3, 7, 9, 13, 21, 39, 49, 63, 91, 117, 147, 273, 441, 637, 819, 1911, 5733, 6971, 20913, 48797, 62739, 90623, 146391, 271869, 341579, 439173, 634361, 815607, 1024737, 1903083, 3074211, 4440527, 5709249, 13321581, 39964743]

約数ペア:

[(1, 39964743), (3, 13321581), (7, 5709249), (9, 4440527), (13, 3074211), (21, 1903083), (39, 1024737), (49, 815607), (63, 634361), (91, 439173), (117, 341579), (147, 271869), (273, 146391), (441, 90623), (637, 62739), (819, 48797), (1911, 20913), (5733, 6971)]