21937664

素因数分解:

$2^9\times 7^1\times {\mathrm{6121}}^1$

素因数の和:6146

約数の個数: 40

約数和(自身を含む): 50102448

約数和(自身を除く): 28164784

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 6121, 12242, 24484, 42847, 48968, 85694, 97936, 171388, 195872, 342776, 391744, 685552, 783488, 1371104, 1566976, 2742208, 3133952, 5484416, 10968832, 21937664]

約数ペア:

[(1, 21937664), (2, 10968832), (4, 5484416), (7, 3133952), (8, 2742208), (14, 1566976), (16, 1371104), (28, 783488), (32, 685552), (56, 391744), (64, 342776), (112, 195872), (128, 171388), (224, 97936), (256, 85694), (448, 48968), (512, 42847), (896, 24484), (1792, 12242), (3584, 6121)]