21081746

素因数分解:

$2^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{167}}^1$

素因数の和:374

約数の個数: 32

約数和(自身を含む): 37158912

約数和(自身を除く): 16077166

約数列:

[1, 2, 7, 14, 71, 127, 142, 167, 254, 334, 497, 889, 994, 1169, 1778, 2338, 9017, 11857, 18034, 21209, 23714, 42418, 63119, 82999, 126238, 148463, 165998, 296926, 1505839, 3011678, 10540873, 21081746]

約数ペア:

[(1, 21081746), (2, 10540873), (7, 3011678), (14, 1505839), (71, 296926), (127, 165998), (142, 148463), (167, 126238), (254, 82999), (334, 63119), (497, 42418), (889, 23714), (994, 21209), (1169, 18034), (1778, 11857), (2338, 9017)]