21471954

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{511237}}^1$

素因数の和:511249

約数の個数: 16

約数和(自身を含む): 49078848

約数和(自身を除く): 27606894

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 511237, 1022474, 1533711, 3067422, 3578659, 7157318, 10735977, 21471954]

約数ペア:

[(1, 21471954), (2, 10735977), (3, 7157318), (6, 3578659), (7, 3067422), (14, 1533711), (21, 1022474), (42, 511237)]