21745738

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{167}}^1$

素因数の和:378

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 16574390

約数列:

[1, 2, 7, 14, 71, 131, 142, 167, 262, 334, 497, 917, 994, 1169, 1834, 2338, 9301, 11857, 18602, 21877, 23714, 43754, 65107, 82999, 130214, 153139, 165998, 306278, 1553267, 3106534, 10872869, 21745738]

約数ペア:

[(1, 21745738), (2, 10872869), (7, 3106534), (14, 1553267), (71, 306278), (131, 165998), (142, 153139), (167, 130214), (262, 82999), (334, 65107), (497, 43754), (917, 23714), (994, 21877), (1169, 18602), (1834, 11857), (2338, 9301)]