20583255

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{251}}^1$

素因数の和:348

約数の個数: 64

約数和(自身を含む): 41803776

約数和(自身を除く): 21220521

約数列:

[1, 3, 5, 7, 11, 15, 21, 33, 35, 55, 71, 77, 105, 165, 213, 231, 251, 355, 385, 497, 753, 781, 1065, 1155, 1255, 1491, 1757, 2343, 2485, 2761, 3765, 3905, 5271, 5467, 7455, 8283, 8785, 11715, 13805, 16401, 17821, 19327, 26355, 27335, 41415, 53463, 57981, 82005, 89105, 96635, 124747, 196031, 267315, 289905, 374241, 588093, 623735, 980155, 1372217, 1871205, 2940465, 4116651, 6861085, 20583255]

約数ペア:

[(1, 20583255), (3, 6861085), (5, 4116651), (7, 2940465), (11, 1871205), (15, 1372217), (21, 980155), (33, 623735), (35, 588093), (55, 374241), (71, 289905), (77, 267315), (105, 196031), (165, 124747), (213, 96635), (231, 89105), (251, 82005), (355, 57981), (385, 53463), (497, 41415), (753, 27335), (781, 26355), (1065, 19327), (1155, 17821), (1255, 16401), (1491, 13805), (1757, 11715), (2343, 8785), (2485, 8283), (2761, 7455), (3765, 5467), (3905, 5271)]