20843515

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54139}}^1$

素因数の和:54162

約数の個数: 16

約数和(自身を含む): 31184640

約数和(自身を除く): 10341125

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54139, 270695, 378973, 595529, 1894865, 2977645, 4168703, 20843515]

約数ペア:

[(1, 20843515), (5, 4168703), (7, 2977645), (11, 1894865), (35, 595529), (55, 378973), (77, 270695), (385, 54139)]