20967918

素因数分解:

$2^1\times 3^1\times {\mathrm{43}}^1\times {\mathrm{67}}^1\times {\mathrm{1213}}^1$

素因数の和:1328

約数の個数: 32

約数和(自身を含む): 43587456

約数和(自身を除く): 22619538

約数列:

[1, 2, 3, 6, 43, 67, 86, 129, 134, 201, 258, 402, 1213, 2426, 2881, 3639, 5762, 7278, 8643, 17286, 52159, 81271, 104318, 156477, 162542, 243813, 312954, 487626, 3494653, 6989306, 10483959, 20967918]

約数ペア:

[(1, 20967918), (2, 10483959), (3, 6989306), (6, 3494653), (43, 487626), (67, 312954), (86, 243813), (129, 162542), (134, 156477), (201, 104318), (258, 81271), (402, 52159), (1213, 17286), (2426, 8643), (2881, 7278), (3639, 5762)]