21647659

素因数分解:

${\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{79}}^1\times {\mathrm{859}}^1$

素因数の和:978

約数の個数: 16

約数和(自身を含む): 24768000

約数和(自身を除く): 3120341

約数列:

[1, 11, 29, 79, 319, 859, 869, 2291, 9449, 24911, 25201, 67861, 274021, 746471, 1967969, 21647659]

約数ペア:

[(1, 21647659), (11, 1967969), (29, 746471), (79, 274021), (319, 67861), (859, 25201), (869, 24911), (2291, 9449)]