21031904

素因数分解:

$2^5\times {\mathrm{71}}^1\times {\mathrm{9257}}^1$

素因数の和:9338

約数の個数: 24

約数和(自身を含む): 41994288

約数和(自身を除く): 20962384

約数列:

[1, 2, 4, 8, 16, 32, 71, 142, 284, 568, 1136, 2272, 9257, 18514, 37028, 74056, 148112, 296224, 657247, 1314494, 2628988, 5257976, 10515952, 21031904]

約数ペア:

[(1, 21031904), (2, 10515952), (4, 5257976), (8, 2628988), (16, 1314494), (32, 657247), (71, 296224), (142, 148112), (284, 74056), (568, 37028), (1136, 18514), (2272, 9257)]