21023457

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1453}}^1$

素因数の和:1529

約数の個数: 32

約数和(自身を含む): 35175168

約数和(自身を除く): 14151711

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 1453, 2067, 4359, 4823, 10171, 14469, 18889, 30513, 56667, 77009, 132223, 231027, 396669, 539063, 1001117, 1617189, 3003351, 7007819, 21023457]

約数ペア:

[(1, 21023457), (3, 7007819), (7, 3003351), (13, 1617189), (21, 1001117), (39, 539063), (53, 396669), (91, 231027), (159, 132223), (273, 77009), (371, 56667), (689, 30513), (1113, 18889), (1453, 14469), (2067, 10171), (4359, 4823)]