20962816

素因数分解:

$2^9\times 7^1\times {\mathrm{5849}}^1$

素因数の和:5874

約数の個数: 40

約数和(自身を含む): 47876400

約数和(自身を除く): 26913584

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 112, 128, 224, 256, 448, 512, 896, 1792, 3584, 5849, 11698, 23396, 40943, 46792, 81886, 93584, 163772, 187168, 327544, 374336, 655088, 748672, 1310176, 1497344, 2620352, 2994688, 5240704, 10481408, 20962816]

約数ペア:

[(1, 20962816), (2, 10481408), (4, 5240704), (7, 2994688), (8, 2620352), (14, 1497344), (16, 1310176), (28, 748672), (32, 655088), (56, 374336), (64, 327544), (112, 187168), (128, 163772), (224, 93584), (256, 81886), (448, 46792), (512, 40943), (896, 23396), (1792, 11698), (3584, 5849)]