21971792

素因数分解:

$2^4\times {\mathrm{29}}^1\times {\mathrm{47353}}^1$

素因数の和:47390

約数の個数: 20

約数和(自身を含む): 44039220

約数和(自身を除く): 22067428

約数列:

[1, 2, 4, 8, 16, 29, 58, 116, 232, 464, 47353, 94706, 189412, 378824, 757648, 1373237, 2746474, 5492948, 10985896, 21971792]

約数ペア:

[(1, 21971792), (2, 10985896), (4, 5492948), (8, 2746474), (16, 1373237), (29, 757648), (58, 378824), (116, 189412), (232, 94706), (464, 47353)]