21978200448

素因数分解:

$2^7\times 3^4\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{61}}^1$

素因数の和:196

約数の個数: 640

約数和(自身を含む): 73459584000

約数和(自身を除く): 51481383552

約数列:

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約数ペア:

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