21208648

素因数分解:

$2^3\times {\mathrm{431}}^1\times {\mathrm{6151}}^1$

素因数の和:6588

約数の個数: 16

約数和(自身を含む): 39864960

約数和(自身を除く): 18656312

約数列:

[1, 2, 4, 8, 431, 862, 1724, 3448, 6151, 12302, 24604, 49208, 2651081, 5302162, 10604324, 21208648]

約数ペア:

[(1, 21208648), (2, 10604324), (4, 5302162), (8, 2651081), (431, 49208), (862, 24604), (1724, 12302), (3448, 6151)]