21996688

素因数分解:

$2^4\times 7^2\times {\mathrm{28057}}^1$

素因数の和:28079

約数の個数: 30

約数和(自身を含む): 49578486

約数和(自身を除く): 27581798

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 392, 784, 28057, 56114, 112228, 196399, 224456, 392798, 448912, 785596, 1374793, 1571192, 2749586, 3142384, 5499172, 10998344, 21996688]

約数ペア:

[(1, 21996688), (2, 10998344), (4, 5499172), (7, 3142384), (8, 2749586), (14, 1571192), (16, 1374793), (28, 785596), (49, 448912), (56, 392798), (98, 224456), (112, 196399), (196, 112228), (392, 56114), (784, 28057)]