21779947

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{1973}}^1$

素因数の和:2082

約数の個数: 16

約数和(自身を含む): 26530560

約数和(自身を除く): 4750613

約数列:

[1, 7, 19, 83, 133, 581, 1577, 1973, 11039, 13811, 37487, 163759, 262409, 1146313, 3111421, 21779947]

約数ペア:

[(1, 21779947), (7, 3111421), (19, 1146313), (83, 262409), (133, 163759), (581, 37487), (1577, 13811), (1973, 11039)]